(R)-3-ethynyl-3-hydroxy-1-methylpyrrolidin-2-one → HCID 86693554, compound

Participants

Reaction Steps

Similar to as described in General Procedure G, racemic ethyl 9-bromo-4,8-difluoro-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylate was reacted with (R)-3-ethynyl-3-hydroxy-1-methylpyrrolidin-2-one to give a diasteromeric mixture of ethyl 4,8-difluoro-9-(((R)-3-hydroxy-1-methyl-2-oxopyrrolidin-3-yl)ethynyl)-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylate. Following aminolysis of the ethyl ester (similar to as described in General Procedure M) a diasteromeric mixture of the titled compounds was obtained after purification by prep HPLC.

Provenance & Evidence