5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Related Products of 129075-56-5
Griffin, Roger J.; Srinivasan, Sheila; Bowman, Karen; Calvert, A. Hilary; Curtin, Nicola J.; Newell, David R.; Pemberton, Louise C.; Golding, Bernard T. published their research in Journal of Medicinal Chemistry on December 17 ,1998. The article was titled 《Resistance-Modifying Agents. 5. Synthesis and Biological Properties of Quinazolinone Inhibitors of the DNA Repair Enzyme Poly(ADP-ribose) Polymerase (PARP)》.Related Products of 129075-56-5 The article contains the following contents:
Clin. studies concerning the role of poly(ADP-ribose) polymerase (PARP) in the repair of drug- and radiation-induced DNA damage have been impeded by the poor solubility, lack of potency, and limited specificity of currently available inhibitors. A series of 2-alkyl- and 2-aryl-substituted 8-hydroxy-, 8-methoxy-, and 8-methylquinazolin-4(3H)-ones has been synthesized and evaluated for PARP inhibitory activity in permeabilized L1210 murine leukemia cells. 8-Methoxy- and 8-methylquinazolinones (14-34) were readily prepared by acylation of 3-substituted anthranilamides with the appropriate acid chloride, followed by base-catalyzed cyclization. The requisite 8-hydroxyquinazolinones (6, 35-39) were synthesized by demethylation of the corresponding 8-methoxyquinazolinones with BBr3. N-Methylation of 8-methoxy-2-methylquinazolinone (15) with MeI, followed by O-demethylation by BBr3, afforded the control N3-methylquinazolinones 42 and 43, resp. In general, an 8-hydroxy or 8-Me substituent enhanced inhibitory activity in comparison with an 8-methoxy group. 2-Phenylquinazolinones were marginally less potent than the corresponding 2-methylquinazolinones, but the introduction of an electron-withdrawing or electron-donating 4′-substituent on the 2-aryl ring invariably increased potency. This was particularly evident in the 8-methylquinazolinone series (IC50 values 0.13-0.27 μM), which are among the most potent PARP inhibitors reported to date. N3-Methylquinazolinones 42 and 43 were essentially devoid of activity (IC50 values > 100 μM). In studies with L1210 cells in vitro, a concentration of 200 μM 8-hydroxy-2-methylquinazolinone (6, NU1025) (IC50 value 0.40 μM) potentiated the cytotoxicity of the monomethylating agent 5-(3-methyltriazen-1-yl)imidazole-4-carboxamide and γ-radiation 3.5- and 1.4-fold, resp., at the 10% survival level. The experimental part of the paper was very detailed, including the reaction process of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Related Products of 129075-56-5)
5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Related Products of 129075-56-5
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem