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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 262339Generated: October 29, 2026

Methylamine → 8-chloro-N-methyl-6-phenyl-4H-pyrazolo[1,5-a][1,4]benzodiazepine-2-carboxamide

https://huagongshe.com/reaction/262339

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant8-Chloro-6-phenyl-4H-pyrazolo[1,5-a][1,4]benzodiazepine-2-carboxylic acid, methyl esterHCID 12377884—
Product8-chloro-N-methyl-6-phenyl-4H-pyrazolo[1,5-a][1,4]benzodiazepine-2-carboxamideHCID 12377888—

Reaction Steps

This compound was prepared from 1.48 g. (4.2 mmol) of the end product of Example 9 and mono-methylamine according to the procedure described above in Example 11. Recrystallization from acetone/ether/hexane gave the desired product, mp 170°-172°. An analytical sample was prepared by recrystallization from the same solvent system and isolated as colorless needles: mp 170°-172°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04153799
Source datasetuspto-grants-1979_05
ORD IDord-8252c070a7404f8da8d516d5a247e606
Source noteuspto-grants-1979_05