90712-13-3Relevant academic research and scientific papers
Production of 1-oxacephams and intermediates
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, (2008/06/13)
Useful intermediates, 7α-acylamino-3-(oxo or exomethylene)-1-dethia-1-oxacepham-4α-carboxylates, are produced by the intramolecular carbenoid insertion of a 2-diazo-3-(oxo or exomethylene)-4-(3α-acylamino-2-oxoazetidin-4β-yl)oxybutyrate prepared in severa
AN ALTERNATIVE SYNTHESIS OF THE 1-OXACEPHEM SKELETON
Yamomoto, Sadao,Itani, Hikaru,Takahashi, Hiroumi,Tsuji, Teruji,Nagata, Wataru
, p. 4545 - 4548 (2007/10/02)
1-Oxacephem skeletons were constructed in a convergent manner starting from building blocks B and C, which were easily prepared from penicillin and diketene, respectively, followed by intramolecular carbene insertion reaction of the resulting intermediate
