多尼培南

(2S,4S)-2-(2,4-Dioxo-imidazolidin-1-ylmethyl)-4-tritylsulfanyl-pyrrolidine-1-carboxylic acid 4-methoxy-benzyl ester

(2S,4S)-2-[3-(2,2,2-Trichloro-acetyl)-ureidomethyl]-4-tritylsulfanyl-pyrrolidine-1-carboxylic acid 4-methoxy-benzyl ester

(1R,5S,6S)-2-[(3S,5S)-5-(1,1-dioxo-2-p-methoxybenzyloxycarbonyl-1,2,5-thiadiazolidin-5-yl)methyl-1-p-methoxybenzyloxycarbonylpyrrolidin-3-yl]thio-6-[(1R)-1-hydroxyethyl]-1-methyl-1-carba-2-penem-3-carboxylic acid p-methoxybenzylester

(2S,4S)-2-{[(Pyridine-3-carbonyl)-amino]-methyl}-4-tritylsulfanyl-pyrrolidine-1-carboxylic acid 4-methoxy-benzyl ester