121534-61-0Relevant articles and documents
CYCLOADDITION REACTIONS OF CEPHALOSPORIN COMPOUNDS, X. SYNTHESIS AND STEREOCHEMISTRY OF BENZHYDRYL 7β-(2-THIENYL)ACETAMIDO-2-SPIROCYCLOPROPYL-2(2',2'-DIPHENYL)-3-ACETOXYMETHYL-3-CEPHEM-4-CARBOXYLATE 1S(β)-OXIDE
Pitlik, Janos,Jaszberenyi, J. Csaba
, p. 847 - 854 (2007/10/02)
Cycloadditions are useful methods to synthesize novel β-lactam derivatives .In our laboratory we studied the 1,3-dipolar cycloaddition reactions of 2-methylenecephems with diazoalkanes .In this paper we report the synthesis and structure elucid