Pyridine → Diethyl 2-(3-(butoxysulfonyl)cyclobutylidene)malonate
Reaction equation
[C:19]([CH2:20][C:21](=[O:22])[O:23][CH2:24][CH3:25])(=[O:26])[O:27][CH2:28][CH3:29].[CH2:36]1[O:37][CH2:38][CH2:39][CH2:40]1.[Cl:1][C:2]([Cl:3])([Cl:4])[Cl:5].[O:6]=[C:7]1[CH2:8][CH:9]([S:11](=[O:12])(=[O:13])[O:14][CH2:15][CH2:16][CH2:17][CH3:18])[CH2:10]1.[cH:30]1[cH:31][cH:32][n:33][cH:34][cH:35]1>>[C:7]1(=[C:20]([C:19](=[O:26])[O:27][CH2:28][CH3:29])[C:21](=[O:22])[O:23][CH2:24][CH3:25])[CH2:8][CH:9]([S:11](=[O:12])(=[O:13])[O:14][CH2:15][CH2:16][CH2:17][CH3:18])[CH2:10]1
