p. 740 - 742
(2007/10/03)metgoxycarbonylsulfenyl chloride
(R)-4-{(E)-3-[(2S,4R)-4-(4-tert-Butyl-phenyl)-2-((S)-1-methoxycarbonyl-3-methylsulfanyl-propylcarbamoyl)-pyrrolidin-1-yl]-propenyl}-2,2-dimethyl-thiazolidine-3-carboxylic acid tert-butyl ester
1-tert-butyl 2-methyl (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate
(S)-1-tert-butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate
1-tert-butyl 2-methyl (2S)-4-(trifluoromethanesulfonyloxy)-2,3-dihydropyrrole-1,2-dicarboxylate