Process for the preparation of N-protected N-formimidoyl
申请人:Merck & Co., Inc.
公开号:US04292436A1
公开(公告)日:1981-09-29
Disclosed is 2 and a process for its preparation: ##STR1## It is useful in the synthesis of N-formimidoyl thienamycin; R.sup.2 is hydrogen or a protecting group.
A convenient direct transformation of -nitrobenzyl 6-(1′-hydroxyethyl)-1-azabicyclo-(3.2.0)heptane-3,7-dione-2-carboxylate to -formimidoyl thienamycin utilizing the silylated derivative of -formimidoyl cysteamine is described.