p. 740 - 742
(2007/10/03)4-(4-tert-butyl-phenyl)-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester
4-(4-tert-butyl-phenyl)-2,3-dihydro-pyrrole-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
1-tert-butyl 2-methyl (2S)-4-(trifluoromethanesulfonyloxy)-2,3-dihydropyrrole-1,2-dicarboxylate
(S)-1-tert-butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate
1-tert-butyl 2-methyl (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate