112970-91-9
hydroxy-(1-methyl-2-oxo-pyrrolidin-3-yl)-acetic acid ethyl ester
→
118870-35-2
1-(1-methyl-pyrrolidin-3-yl)-ethane-1,2-diol
5021-33-0
1-甲基-3-吡咯烷甲醇