The present invention is to efficiently and simply prepare an optically active 7-substituted-2-aminotetralin with industrial advantage. In the process, a 7-substituted-2-tetralone or its bisulfite adduct is reduced with a microorganism to an optically active 7-substituted-2-tetralol. Then, a sulfonyl group is introduced to the hydroxy group to form an optically active 7-substituted-2-sulfonyloxytetralin. Then, with inversion of the configuration, a nitrogen substituent is introduced using a nitrogen nucleophile to form an optically active 2,7-substituted tetralin. Furthermore, if necessary, the nitrogen substituent is converted into a non-substituted amino group. Thus, an optically active 7-substituted-2-aminotetralin or its salt is prepared.
本发明旨在以工业优势高效简便地制备光学活性的7-取代-2-
氨基四氢
萘。在该过程中,使用微
生物将7-取代-2-四氢
萘酮或其
亚硫酸盐加合物还原为光学活性的7-取代-2-四氢
萘醇。然后,引入磺酰基到羟基上,以形成光学活性的7-取代-2-磺酰氧基四氢
萘。接着,通过构型反演,使用氮亲核试剂引入氮取代基,以形成光学活性的2,7-取代四氢
萘。此外,如有必要,氮取代基可转化为非取代的
氨基。因此,制备了光学活性的7-取代-2-
氨基四氢
萘或其盐。