Procédé pour la préparation de phényléthanolaminotétralines
申请人:ELF SANOFI
公开号:EP0303545B1
公开(公告)日:1992-06-17
US5198586A
申请人:——
公开号:US5198586A
公开(公告)日:1993-03-30
US5235103A
申请人:——
公开号:US5235103A
公开(公告)日:1993-08-10
Process for the preparation of phenylethanolaminotetralins
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.