sodium;benzenesulfinate 、
9-溴-1-壬醇 、
9-benzenesulfonyl-1-nonanol 、
9-benzenesulfonyl-nonanoic acid 、 (R)-benzyl 3-amino-4-(dimethylamino)butanoate dihydrochloride 以to produce (R)-3-(9-benzenesulfonyl-nonanoylamino)-4-dimethylamino-butyric acid benzyl ester, which的产率得到(R)-3-(9-benzenesulfonyl-nonanoylamino)-4-dimethylamino-butyric acid benzyl ester