132559-84-3
+
67-68-5
二甲基亚砜
→
~79%
130865-70-2
1-(Benzyloxy)-4-methyl-2,3-pyrrolidinedione
144564-41-0
70423-44-8
(Z)-4,4-Dimethoxy-3-methyl-crotonsaeureaethylester
130865-67-7
1-benzyloxy-4-methylpyrrolidin-2-one
54998-57-1
ethyl 3-methyl-4-oxobutanoate
622-33-3
邻苄基羟胺
130931-65-6
2-吡咯烷酮,3-氨基-1-羟基-4-甲基-,(3R,4R)-(9CI)