p. 4357 - 4364
(2011/02/24)N-methyl-2-[(Z)-(methylsulfonyl)methylidene]thiazolidine
N-[(ethoxycarbonyl)methly]-2-[(Z)-(methylsulfonyl)methylidene]thiazolidine
N-benzyl-2-[(Z)-(methylsulfonyl)methylidene]thiazolidine
(R)-N-methyl-2-[(Z)-(methylsulfonyl)methylidene]-4-phenylthiazolidine
(S)-N-benzyl-4-isopropyl-2-[(Z)-(methylsulfonyl)methylidene]thiazolidine