90244-30-7Relevant articles and documents
NOVEL 2-METHYL-1-OXACEPHALOSPORINS 2. SYNTHESIS OF 3-SUBSTITUTED 2-METHY-1-OXACEPHEM NUCLEUS
Okonogi, Tsuneo,Shibahara, Seiji,Murai, Yasushi,Inouye, Sigeharu,Kondo, Shinichi,Christensen, Burton G.
, p. 797 - 802 (2007/10/02)
The stereoselective syntheses of 3-substituted 2α- and 2β-methyl-1-oxacephems have been achieved through the intramolecular Wittig condensation of 4-(1-methylpropoxy)azetidinones.