METHOD OF SYNTHESIS OF TETRAHYDRO-[1,4]-BENZODIAZEPINE-2-THIONES OR THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITIVE SALTS OR STEREOCHEMICAL ISOMERS Russian patent published in 1994 - IPC

Abstract RU 2024523 C1

FIELD: organic chemistry. SUBSTANCE: product of the formula (I) (image) where R1 - C3-C6-alkyl substituted with C3-C6-cycloalkyl; R2 and R3 - independently mean hydrogen or C1-C6-alkyl; R4 and R5 - independently mean hydrogen, C1-C6-alkyl, halide, cyano, nitro or trifluoromethyl; or pharmaceutically acceptable salts. Reagent 1: corresponding 4,5,6,7- tetrahydroimidazo -[4,5-ik] [1,4]-benzodiazepine -2-one. Reagent 2: halide. Reagent 3: thiourea. Reaction conditions: in the medium of inert organic solvent. EFFECT: improved method of synthesis. 3 tbl

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RU 2 024 523 C1

Authors

Majkl Dzhozef Kukla[Us]

Genri Dzhozef Breslin[Us]

Al'Fons Kherman Margageta Rejmakers[Us]

Jozefus Ljudovikus Khubertus Van Gel'Der[Us]

Pol' Andrian Jan Janssen[Be]

Dates

1994-12-15Published

1990-02-22Filed