|
CH520158A
|
|
2 2-disubst-3-acyl-5 a-amino-thiazolidine-4-carboxylic acid derivs
|
|
CH501006A
|
|
3-acylthiazolidine-4-carboxylic acid derivs
|
|
CH497456A
|
|
Azetidine compounds and process for their manufacture
|
|
CH497452A
|
|
Protection of carboxyl gps. in penicillin and cephalosporin synthesis
|
|
CH497446A
|
|
2 2-disubst-3-acyl-5-hydrazino-thiazolidine-4-carboxylic acid derivs
|
|
CH497457A
|
|
Process for the prepn. of cpds. where ac = acyl; X = disubstd. C atom; Ra= an alcohol residue; Ro= H or an acyl. Intermediates in the prepn. of phar
|
|
CH497449A
|
|
Actinomyces aureofaciens ls-b-22-ol
|
|
CH497379A
|
|
Protection of carboxyl gps. in penicillin and cephalosporin synthesis
|
|
CH497369A
|
|
Alpha-diacylmethyl-alpha-hydroxymethane carboxylic acid esters - intermediates in the synthesis of cephalosporanic acids
|
|
CH497371A
|
|
Protection of carboxyl gps. in penicillin and cephalosporin synthesis
|
|
CH497447A
|
|
(3)-Acyl-(5)-acyloxy-thiazolidine-(4)-carboxylic acid derivs.
|
|
CH497451A
|
|
Protection of carboxyl gps. in penicillin and cephalosporin synthesis
|
|
CH497448A
|
|
Actinomyces aureofaciens ls-b-22-ol
|
|
CH497460A
|
|
Process for the prepn. of cpds. where ac = acyl; X = disubstd. C atom; Ra= an alcohol residue; Ro= H or an acyl. Intermediates in the prepn. of phar
|
|
CH497450A
|
|
2 2-disubst-3-acyl-5-urethano-thiazolidine-4-carboxylic
|
|
CH497445A
|
|
Protection of carboxyl gps. in penicillin and cephalosporin synthesis
|
|
CH539594A
|
|
2 2-disubst-3-acyl-5-hydrazino-thiazolidine-4-carboxylic acid derivs
|
