57057-80-4
L-(-)-O-对甲苯磺酰基乳酸乙酯
→
~83%
96882-98-3
(S)-(+)-2-(对甲苯磺酸)-1,2-丙二醇
98-59-9
对甲苯磺酰氯
33798-77-5
ethyl (S)-α-(4-methyl-phenylsulphonyloxy)-propionate