4-Nitrobenzyl chloride → 3-(4-Nitrobenzyl)-5-(3,4-dimethoxyphenyl)-6-ethyl-3,6-dihydro-1,3,4-thiadiazin-2-one

Reaction equation

[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[CH:16]([CH2:17][CH3:18])[S:15][C:14](=[O:19])[NH:13][N:12]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].COC1C=C(C(=O)C(Br)CC)C=CC=1OC.[N+:36]([C:39]1[CH:46]=[CH:45][C:42]([CH2:43]Cl)=[CH:41][CH:40]=1)([O-:38])=[O:37].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[N+:36]([C:39]1[CH:46]=[CH:45][C:42]([CH2:43][N:13]2[N:12]=[C:11]([C:5]3[CH:6]=[CH:7][C:8]([O:9][CH3:10])=[C:3]([O:2][CH3:1])[CH:4]=3)[CH:16]([CH2:17][CH3:18])[S:15][C:14]2=[O:19])=[CH:41][CH:40]=1)([O-:38])=[O:37]