α-Methoxy-α-(6H-1,3-thiazin-2-yl)glycinates precursors of 7-methoxycephems by [3+3] cyclocondensation reaction
作者:Abdelhadi Boussoufi、Jean-Luc Parrain、Piétrick Hudhomme、Guy Duguay
DOI:10.1016/s0040-4020(01)89394-7
日期:1994.1
We report here a new widely useful and applicable preparation of functionalised 6H-1,3-thiazinic cycloadducts, versatile key intermediates in the total multistep syntheses of 7-methoxycephems (as analogues of 7-methoxycephalosporins).