p. 9240 - 9247
(2008/03/14)p. 4801 - 4804
(2007/10/03)p. 1617 - 1620
(2007/10/03)4R-4-hydroxyproline
(R)-4-hydroxy-L-proline ethyl ester
(S)-1-tert-butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate
1-tert-butyl 2-methyl (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate
2-tert-butoxycarbonylamino-6-(tert-butyl-dimethyl-silanyloxy)-4-[3-(4-methoxy-benzyloxy)-propyl]-hex-4-enoic acid methyl ester