(S)-(-)-1,2,3,4-四氢-3-异喹啉甲酸苄酯对甲苯磺酸盐 CAS No.: 77497-97-3 Benzyl (S)-(-)-1,2,3,4-tetrahydro-3-isoquinolinecarboxylate p-toluenesulfonic acid salt 用途:喹那普利中间体