p. 2829 - 2834
(2008)p. 4208 - 4218
(2011/04/12)p. 719 - 724
(2007/10/03)(1R,7aR)-1,5,5,7a-tetramethyl-2,6-dioxa-4-azapentalen-3-one
methyl (2R,3S,7R,7aS)-7-methoxy-2,3,7,7a-tetramethyl-5-oxotetrahydro-2H-oxazolo[4,3-b]oxazole-3-carboxylate
(4S,5R)-4-isopropoxycarbonyl-4,5-dimethyl-2-phenyl-1,3-oxazoline
(2S,3R)-2-Azido-3-hydroxy-2-methyl-butyric acid isobutyl ester
isobutyl (2R,3R)-2,3-dihydroxy-2-methylbutanoate