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(2007/10/02)(2S,3S,4S)-4-((1Z,3E)-(R)-5-Carboxy-1-methyl-hexa-1,3-dienyl)-3-methoxycarbonylmethyl-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
(2S,3S,4S)-2-(tert-Butyl-dimethyl-silanyloxymethyl)-4-(1-[1,3]dioxolan-2-yl-ethyl)-3-methoxycarbonylmethyl-5-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester
(2S,3S,4S)-3-Methoxycarbonylmethyl-4-((Z)-1-methyl-3-oxo-propenyl)-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
(2S,3S,4S)-3-Methoxycarbonylmethyl-4-(1-methyl-3-oxo-2-phenylselanyl-propyl)-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
(2S,3S,4S)-4-((1Z,3E)-(R)-6-Hydroxy-1,5-dimethyl-hexa-1,3-dienyl)-3-methoxycarbonylmethyl-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester