申请人:Sanofi
公开号:US05198586A1
公开(公告)日:1993-03-30
A process for the preparation of phenylethanolaminotetralins of formula ##STR1## wherein X is hydrogen, a halogen, a trifluoromethyl or a lower alkyl group and R.degree. is hydrogen or a methyl group substituted by a carboxy or a lower carbalkoxy group, which comprises treating a mandelic acid with a 2-amino-7-hydroxytetralin, optionally alkylating with a lower alkyl haloacetate and reducing the amido group of the mandelamide into a methyleneamino group. The mandelamides intermediates are novel.
phenylethanolaminotetralins的制备过程,其分子式为##STR1##,其中X是氢,卤素,三氟甲基或低级烷基团,而R度是氢或甲基,被羧基或低级碳酸酯基团取代,包括用扁桃酸处理2-氨基-7-羟基四氢喹啉,任选地用低级烷基卤代醋酸酯进行烷基化,并将扁桃酰胺的酰胺基还原为甲叉氨基。中间体扁桃酰胺是新颖的。