87043-33-2Relevant articles and documents
CONTRASTING THERMAL BEHAVIOUR OF DIASTEREOISOMERIC 4-ACETYLTHIO-3-ACYLAMINO-1-(α-TRIPHENYLPHOSPHORANYLIDENE)ALKOXYCARBONYLMETHYLAZETIDIN-2-ONES
Irving, James R.,Perrone, Ettore,Stoodley, Richard J.
, p. 2501 - 2504 (2007/10/02)
Under conditions in which cis isomers of the title compounds are converted into 6β-acylamino-2-methylpenem-3-carboxylates, trans isomers afford thiazole-4-carboxylates and 2-alkyloxazolin-5-ones.