Month: December 2022

Wu, Wen-Biao published the artcileMe2(CH2 = CH)SiCN: a bifunctional ethylene equivalent for Diels-Alder reaction based controllable tandem synthesis, HPLC of Formula: 21834-92-4, the main research area is cyclohexenyl ketone perpn crystal structure mol; cyclohexancarbonitrile derivative perpn crystal structure mol; ylide aldehyde tandem reaction bifunctional silyl reagent.

A bifunctional silyl reagent Me2(CH2=CH)SiCN was developed as a novel ethylene equivalent for the Diels-Alder (DA) reaction. The use of this reagent enabled the controllable synthesis of value-added cyclohexenyl ketones I [R = Ph, 4-MeC6H4, 3-FC6H4, etc.; R1 = Me, Et, Ph, etc.], II [R2 = H, 7-OMe, 6-Br; X = CH2, O] or 2-acyl cyclohexancarbonitrile derivatives III [R3 = Me, cyclopropyl, iPr, Ph; R4 = Ph, 4-MeC6H4, 4-FC6H4, etc.] through a five- or six-step tandem sequence based on a Wittig/cyanosilylation/DA reaction/retro-cyanosilylation/isomerization of P-ylides and enals that involved a temporary silicon-tethered intramol. DA reaction.

Chemical Science published new progress about Crystal structure. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, HPLC of Formula: 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Yan published the artcileFourfold-Interpenetrated MOF [Ni(pybz)2] as Coating Material in Gas Chromatographic Capillary Column for Separation, Related Products of isoquinoline, the main research area is nickel pyridylbenzoato complex preparation crystal structure gas adsorption DFT; alc aldehyde ketone carboxylic acid ethers ester amine separation.

A 4-fold interpenetrated diamond-like topol. metal-organic framework (MOF), Ni(pybz)2 [pybz = 4-(4-pyridyl)benzoate] was successfully synthesized and fully characterized. This MOF can serve as coating material in gas chromatog. capillary column for the separation of some low b.p. essential oils. The prepared columns have good recognition ability and excellent selectivity toward organic compounds, including alcs., aldehydes, ketones, carboxylic acid, ethers, ester, and amines. The strained metal sites, van der Waals interactions, C-H···π attraction, and weak nonclassical hydrogen bond contribute to the recognition and selectivity of prepared columns. The grand canonical Monte Carlo technique was used to simulate the interactions of the adsorbates with MOF. The calculated van der Waals energies agree with the results of gas chromatog. separation

Inorganic Chemistry published new progress about Coating materials. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

McNamara, Michelle M published the artcileOral contrast media for body CT: Comparison of diatrizoate sodium and iohexol for patient acceptance and bowel opacification., Name: Diatrizoic Acid, the main research area is .

OBJECTIVE: The purpose of the study was to determine whether a difference in patient preference exists between iohexol (Omnipaque) and diatrizoate sodium (Gastroview) as oral contrast medium for abdominal-pelvic CT. A secondary objective was to evaluate whether there are significant differences in bowel opacification and adverse effect profile for the two agents. SUBJECTS AND METHODS: From August 2007 through March 2009, 300 patients were enrolled in this prospective study after informed consent was obtained. Eligible patients were identified from those scheduled for outpatient abdominal-pelvic CT. Subjects were randomly assigned to receive one of two oral contrast agents in a double-blinded fashion. Subjects graded the taste using a 5-point scale, and data regarding demographics, total volume, and adverse effects were collected. A direct comparison of 30 mL of each of the two diluted agents in randomized order was then performed. CT images were graded for bowel opacification by two blinded abdominal radiologists. RESULTS: Of 287 subjects who expressed a preference, 233 patients (81%) preferred dilute iohexol compared with 54 patients (19%) who preferred dilute diatrizoate sodium (p < 0.001). Ten patients had no preference, and three patients did not complete the taste comparison study. No difference in bowel opacification was identified between the oral contrast agents (p = 0.27), nor was there a significant difference in adverse effects (p = 0.352). CONCLUSION: Patents preferred dilute iohexol over dilute diatrizoate sodium for oral contrast for abdominal-pelvic CT. There was no significant difference in bowel opacification or adverse effect profile. AJR. American journal of roentgenology published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Name: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lakhman, Yulia published the artcileEarly postoperative CT as a prognostic biomarker in patients with advanced ovarian, tubal, and primary peritoneal cancer deemed optimally debulked at primary cytoreductive surgery., Application In Synthesis of 117-96-4, the main research area is .

OBJECTIVE: The purpose of this article is to determine whether early postoperative CT provides prognostic information in patients with advanced ovarian, tubal, or primary peritoneal carcinoma with optimal debulking reported at primary cytoreduction. MATERIALS AND METHODS: Our study included 63 patients who underwent primary cytoreductive surgery for presumed advanced ovarian cancer, who had optimal debulking (residual disease â‰?1 cm) reported at surgery, and who underwent CT before and 7-49 days after surgery. Two radiologists independently retrospectively interpreted all postoperative CT scans and scored lesions on a 5-point scale, where 1 indicates normal and 5 indicates definitely malignant. Lesions larger than 1 cm with a CT score of 4 or 5 were considered suboptimally debulked residual disease. RESULTS: Suboptimally debulked residual disease on CT (range, 1.1-5.8 cm) was reported by reader 1 for 29 of 63 patients (46%) and by reader 2 for 31 of 63 patients (49%), with substantial interobserver agreement (κ = 0.75). Patients with suboptimally debulked residual disease on CT had significantly worse median progression-free survival (p = 0.001, both readers) and overall survival (p â‰?0.010, both readers). By univariate and multivariate analyses, suboptimally debulked residual disease on CT remained a significant independent predictor of progression-free survival (p = 0.001, both readers) and overall survival (p â‰?0.006, both readers). CONCLUSION: Our study showed that residual disease larger than 1 cm was present on early postoperative CT in almost half of the patients deemed to have optimally debulked disease at primary cytoreduction. Residual disease larger than 1 cm detected on early postoperative CT was associated with significant decreases in both progression-free and overall survival.

AJR. American journal of roentgenology published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Application In Synthesis of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Urban-Chmiel, R published the artcileThe influence of selected techniques of bovine leukocyte isolation on their viability and metabolism., Quality Control of 117-96-4, the main research area is .

The aim of the study was to assess the effect of selected isolation methods on the viability and metabolism of bovine leukocytes. The cells were isolated using a Ficoll 1077, Histopaque 1083 gradient and osmotic shock method, and Ficoll or Histopaque with osmotic shock. Evaluation were made of the total number of cells, viability after isolation and in 24h culture on RPMI 1640 medium and metabolism with NBT reduction assay. Microscopic and cytometric evaluation of the leukocytes revealed that the isolation methods applied had an influence on their number and viability. Based on the results it can be concluded that isolation methods of cells in a Histopaque or Ficoll yield highly pure cell fractions with high viability.

Polish journal of veterinary sciences published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Quality Control of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lawrence, Edward M published the artcileLow-volume hybrid bowel preparation combining saline laxatives with oral contrast agents versus standard polyethylene glycol lavage for colonoscopy., HPLC of Formula: 117-96-4, the main research area is .

PURPOSE: The aim of this study was to compare the quality of low-volume hybrid computed tomography colonography bowel preparation, using both laxatives and oral contrast, with standard polyethylene glycol lavage. METHODS: The study group consisted of 300 consecutive adults (mean age, 58.3 years) who underwent colonoscopy immediately after positive computed tomography colonography. Hybrid bowel preparation for study group was <1 L in total volume, consisting of osmotic cathartic (sodium phosphate or magnesium citrate) in conjunction with oral contrast (2% barium and diatrizoate). A control group of 300 adults (mean age, 58.3 years) underwent primary colonoscopy after standard 4-liter polyethylene glycol lavage without oral contrast. The prospective preparation quality rating by the endoscopist served as the reference standard. A rating of poor/marginal was considered inadequate and adequate/good/excellent was considered diagnostic. RESULTS: The frequency of inadequate bowel preparation was 4.3% (13/300) in the study group vs 12.3% (37/300) for the control group (P < .001). Specifically, preparation was poor or marginal in 10 and 3 cases in the hybrid cohort, respectively, and in 29 and 8 cases in the polyethylene glycol cohort, respectively. Preparation quality was scored as excellent in 32% (96/300) in the hybrid cohort and 23.3% (70/300) in the polyethylene glycol cohort (P < .05). CONCLUSIONS: At colonoscopy, low-volume laxative-oral contrast hybrid preparations are effective for bowel cleansing, perhaps even more so than polyethylene glycol lavage. Beyond improvements in quality, the low-volume preparation may improve patient compliance and would allow for immediate computed tomography colonography if colonoscopy is incomplete, without the need for additional oral contrast tagging. Diseases of the colon and rectum published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, HPLC of Formula: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pollentine, A published the artcileAcceptability of oral iodinated contrast media: a head-to-head comparison of four media., Category: isoquinoline, the main research area is .

OBJECTIVE: To assess the palatability of iodinated oral contrast media commonly used in abdominopelvic CT and CT colonography (CTC). METHODS: 80 volunteers assessed the palatability of a 20-ml sample of a standard 30 mg ml(-1) dilution of Omnipaque® (iohexol; GE Healthcare, Cork, Ireland), Telebrix® (meglumine ioxithalamate; Guerbet, Aulnay-sous-Bois, France), Gastromiro® (iopamidol; Bracco, High Wycombe, UK) and Gastrografin® (sodium diatrizoate and meglumine diatrizoate; Bayer, Newbury, UK) in a computer-generated random order. RESULTS: Gastrografin is rated significantly less palatable than the remaining media (p<0.005). Omnipaque and Telebrix are significantly more palatable than Gastromiro. No difference existed between Omnipaque and Telebrix. 39% of participants would refuse to consume the quantities of Gastrografin required for a CTC examination compared with Telebrix (7%) and Omnipaque (9%) (p<0.05). CONCLUSION: Omnipaque and Telebrix are significantly more palatable than both Gastromiro and Gastrografin, with participants more willing to ingest them in larger quantities as well as being less expensive. ADVANCES IN KNOWLEDGE: Omnipaque and Telebrix are significantly more palatable iodinated oral contrast media than both Gastromiro and Gastrografin, which has potential implications in compliance with both abdominopelvic CT and CTC. The British journal of radiology published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bronnec, F published the artcileEx vivo assessment of irrigant penetration and renewal during the cleaning and shaping of root canals: a digital subtraction radiographic study., Synthetic Route of 117-96-4, the main research area is .

AIM: To assess radiographically irrigant penetration in the root canal system of curved roots during root canal shaping procedures ex vivo. METHODOLOGY: Thirty extracted mandibular molar teeth with moderate to severe curvature were used. A special aiming device was used to guarantee that each successive radiograph was taken with the same positioning. The mesiolingual canal of each tooth was instrumented using the ProTaper system. For each step of the shaping procedure, two irrigation modalities were repeated in the same order. Active irrigation consisted of a 0.5-mL flush of sodium diatrizoate solution (Hypaque 50%) immediately followed by agitation with a size 08 K-file. Passive irrigation consisted of a 0.5-mL flush of sodium hypochlorite solution delivered with a syringe through a 27-gauge notched tip needle. A digital radiograph was taken after each modality and stored on computer for subsequent digital subtraction and measures of the depths of irrigant penetration. Comparisons were performed within an analysis-of-variance framework in a repeated-measures approach. RESULTS: The penetration of irrigants was significantly greater for each successive step of the shaping procedure when the two modalities were analysed separately (P < 0.001). The difference between the two modalities was statistically significant for each step of the shaping procedure (P < 0.0001). CONCLUSIONS: Shaping root canals improved both penetration and exchange of irrigant inside the root canal system. Complete renewal of the solution was impossible to achieve with a conventional syringe delivery system and a limited volume of solution. Recapitulation with a K-file after flushing improved irrigant penetration. International endodontic journal published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Synthetic Route of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bronnec, F published the artcileEx vivo assessment of irrigant penetration and renewal during the final irrigation regimen., Application of Diatrizoic Acid, the main research area is .

AIM: To assess irrigant penetration in curved canals after shaping procedures ex vivo. METHODOLOGY: Thirty extracted mandibular molars with moderate to severe root canal curvature were included. A special aiming device was used to guarantee that each successive radiograph was taken with the same positioning. The mesiolingual canal of each tooth was instrumented with ProTaper rotary files. Apical third preparation was completed with an F1 instrument before additional step-back enlargement using F2 then F3 instruments. For each apical taper, the teeth were submitted successively to active irrigation (AI) then to passive irrigation (PI). AI consisted of a 0.5 mL flush of sodium diatrizoate (Hypaque 50%) immediately followed by manual mechanical activation with a gutta-percha point. PI consisted in flushing the canals with sodium hypochlorite passively delivered with a syringe. A digital radiograph was taken after each modality. The influence of needle tip design, needle tip insertion level, irrigant volume, root canal taper and solution activation was assessed by using digital subtraction radiography and measures of the depths of irrigant penetration. Comparisons were performed within an analysis of variance framework in a repeated-measures approach. RESULTS: For PI, all the four explanatory variables ‘apical taper’, ‘volume of irrigant used’, ‘corono-apical level of needle tip placement’, ‘needle tip design’ had a significant (P < 0.005) influence on outcome of irrigation penetration. CONCLUSIONS: Only active irrigation allowed complete penetration and exchange of irrigating solution. For syringe irrigation alone, the level of needle tip placement in the canal was the most dominating factor. International endodontic journal published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Application of Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Churchill, Paige published the artcileSclerotherapy for lymphatic malformations in children: a scoping review., SDS of cas: 117-96-4, the main research area is .

PURPOSE: This scoping review assesses the literature and summarizes the current evidence on sclerotherapy for the treatment of lymphatic malformations in pediatric patients. METHODS: A comprehensive search of published and unpublished literature was conducted using multiple databases. Title, abstract, and full-text screening was conducted by 2 independent clinicians. All discrepancies were resolved during consensus meetings. RESULTS: A total of 182 articles were retrieved. Forty-four articles were removed as duplicates, and 11 articles were added after reviewing prominent studies. After full-text abstraction, 44 articles and 2 conference proceedings (N = 882 patients) were included in the final results. Twelve articles were classified as level II and 34 articles as level IV evidence. Picibanil (OK-432) was the primary agent used in most included studies. Postinjection symptoms with OK-432 were primarily fever, swelling, and erythema at the site. Life-threatening complications were uncommon and involved postinjection swelling of cervical lesions causing airway compromise. CONCLUSIONS: The literature regarding sclerotherapy for lymphatic malformations is of a low level of evidence and suffers from a lack of standardization. Randomized clinical trials focused on OK-432, bleomycin, or alcoholic solution of zein; standardized dosing protocols; and consistent and reliable outcome reporting will be necessary for further development of treatment guidelines.

Journal of pediatric surgery published new progress in MEDLINE about 117-96-4, 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, SDS of cas: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem