申请人:Hoechst Aktiengesellschaft
公开号:US04525301A1
公开(公告)日:1985-06-25
The invention relates to a process for the preparation of compounds of the formula I ##STR1## in which n is 1 or 2, R represents hydrogen, an aliphatic, cycloaliphatic, aromatic, araliphatic, cycloaliphatic-aliphatic radical or a radical OR.sup.a or SR.sup.2, in which R.sup.a denotes alkyl, aryl or heteroaryl, R.sup.1 denotes hydrogen, an aliphatic, cycloaliphatic-aliphatic, aromatic, araliphatic, heteroaromatic radical or an aminoacid side chain, R.sup.2 and R.sup.3 are identical or different and denote hydrogen, an aliphatic, cycloaliphatic, aromatic or araliphatic radical, and R.sup.4 +R.sup.5, together with the atoms carrying them, form a heterocyclic ring system, which comprises reacting trifluoromethanesulfonic acid derivatives of the formulae II or III with aminoacid esters of the formulae IV or V respectively. The invention also relates to compounds of the formula III and a process for their preparation.
本发明涉及一种制备式I的化合物的方法,其中n为1或2,R代表氢、脂肪族、环脂族、芳香族、芳基脂肪族、环脂族-脂肪基基团或基团OR.sup.a或SR.sup.2,其中R.sup.a表示烷基、芳基或杂环芳基,R.sup.1表示氢、脂肪族、环脂族-脂肪基、芳香族、芳基脂肪族、杂环芳基或氨基酸侧链,R.sup.2和R.sup.3相同或不同,表示氢、脂肪族、环脂族、芳香族或芳基脂肪族基团,而R.sup.4+R.sup.5与携带它们的原子一起形成一个杂环环系统,其中包括将式II或III的三氟甲烷磺酸衍生物与分别式IV或V的氨基酸酯反应。本发明还涉及式III的化合物及其制备方法。