Chemistry is traditionally divided into organic and inorganic chemistry. Safety of 7-Hydroxy-6-methoxy-3,4-dihydroisoquinoline, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 4602-73-7
Compounds of the general formula (I): or a salt thereof, wherein R1 is a hydrogen atom or the like; R2 is NHSO2R3 or the like; R3 is a (C1-C6)alkyl group or the like; R5 is a hydrogen atom or the like; R6 and R7 may be the same or different and each independently represents a hydrogen atom or the like; X is an oxygen atom or the like; Y is an oxygen atom or the like; Z1 to Z6 are a carbon atom or the like; n is an integer of 0 to 6; *1 is an asymmetric carbon atom; and *2 is an asymmetric carbon atom when R5 is other than a hydrogen atom.
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem