p. 1089 - 1092
(2021/05/26)(2011/04/18)
p. 13978 - 13982
(2012/01/06)p. 3622 - 3631
(2010/10/04)(2008/06/13)
(2010/11/27)
(2008/06/13)
p. 3730 - 3737
(2007/10/03)2-pyrrolidinon
(R)-2-trifluoromethanesulfonyloxybutyric acid methyl ester
(Z)-methyl 2-(2-oxopyrrolidin-1-yl)-2-butenoate
ethyl-(S)-4-[(1-methoxycarbonyl)propylamino]butyrate
(S)-methyl-4-(1-methoxycarbonylpropylamino)butyrate