申请人:Hoechst Aktiengesellschaft
公开号:US05420329A1
公开(公告)日:1995-05-30
The invention relates to a process for the enantioselective preparation of L-phosphinothricin (L-Ptc) and derivatives of the formula I ##STR1## in which R.sup.1 is H, (C.sub.1 -C.sub.6)-alkyl, (C.sub.1 -C.sub.4)-haloalkyl, (C.sub.3 -C.sub.6)-cycloalkyl or (subst.) phenyl-(C.sub.1 -C.sub.4)-alkyl, R.sup.2 is hydrogen, formyl, [(C.sub.1 -C.sub.6)alkyl]carbonyl, [(C.sub.1 -C.sub.6)alkoxy]carbonyl, (subst.) benzyloxycarbonyl, (C.sub.1 -C.sub.6)-alkylsulfonyl or (subst.) (C.sub.6 -C.sub.10)-arylsulfonyl, and R.sup.3 is OH, NH.sub.2 or (C.sub.1 -C.sub.6)-alkoxy, or their salts with acids or bases.
本发明涉及一种对L-磷酰丙氨酸(L-Ptc)及其衍生物的对映选择性制备方法,其化学式为I ##STR1##其中,R1为H,(C1-C6)-烷基,(C1-C4)-卤代烷基,(C3-C6)-环烷基或(取代)苯基-(C1-C4)-烷基,R2为氢,甲酰,[(C1-C6)烷基]羰基,[(C1-C6)烷氧基]羰基,(取代)苄氧羰基,(C1-C6)-烷基磺酰基或(取代)(C6-C10)-芳基磺酰基,R3为OH,NH2或(C1-C6)-烷氧基,或其与酸或碱的盐。