PROCESS FOR THE EXTRACTION OF D-PENICILLAMINE FROM DL-PENICILLAMINE.

摘要

1413038 Process for D- and L-penicillamine DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT 31 Oct 1973 [29 Nov 1972] 50614/73 Addition to 1394855 Heading C2C D-penicillamine (and optionally L-penicillamine) is obtained by resolving protected D,L- penicillamine using l-norephedrine in the form of a salt as optically active base; N-formylisopropylidene-D-penicillamine and D-N-formyl- 2,2 - pentamethylene - 5,5 - dimethyl - thiazolidine- 4-carboxylic acid are isolated as well as the adducts of these two compounds with l-norephedrine.