(R)-benzyl 3-amino-4-(dimethylamino)butanoate 、
4-Ethoxy-3-(morpholine-4-carboxamido)benzene-1-sulfonyl chloride 以to yield the title compound as a white solid (32 mg, 68%)的产率得到(R)-benzyl 4-(dimethylamino)-3-(4-ethoxy-3-(morpholine-4-carboxamido)phenyl-sulfonamido)butanoate