The chiral compound S-5-substituted-N-2′-(thienyl-2-yl-)ethyl-tetralin-2-amine or its chiral acid salts and preparation method thereof are disclosed, and the method for preparing Rotigotine by using the chiral compound is also disclosed. Racemic 5-substituted-N-2′-(thien-2-yl-)ethyl-tetralin-2-amine (compound 1) is resolved by using a conventional chiral acid to obtain an optically pure chiral acid salt of S-5-substituted-N-2′-(thien-2-yl-)ethyl-tetralin-2-amine, which is then dissociated to obtain S-5-substituted-N-2′-(thien-2-yl-)ethyl-tetralin-2-amine (compound 2). The compound 2 or chiral acid salt thereof is alkylated and deprotected to produce rotigotine (compound 5).
所述的手性化合物S-5-取代-N-2′-(
噻吩-2-基-)乙基-四氢
萘-2-胺或其手性酸盐及其制备方法被揭示,并且还揭示了利用该手性化合物制备罗蒂果汀的方法。利用常规手性酸将混合物5-取代-N-2′-(
噻吩-2-基-)乙基-四氢
萘-2-胺(化合物1)分离,以获得S-5-取代-N-2′-(
噻吩-2-基-)乙基-四氢
萘-2-胺的光学纯手性酸盐,然后解离以获得S-5-取代-N-2′-(
噻吩-2-基-)乙基-四氢
萘-2-胺(化合物2)。化合物2或其手性酸盐经烷基化和去保护反应制备罗蒂果汀(化合物5)。