[CH3:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH2:10][CH2:11][NH2:12])=[CH:7][C:6]=2[CH:13]=1.[C:14]([NH:16][C:17](=[N:20][CH2:21][CH2:22][S:23][CH2:24][C:25]1[O:26][C:27]([CH2:30][N:31]([CH3:33])[CH3:32])=[CH:28][CH:29]=1)SC)#[N:15]>>[C:14]([NH:16][C:17]([NH:20][CH2:21][CH2:22][S:23][CH2:24][C:25]1[O:26][C:27]([CH2:30][N:31]([CH3:33])[CH3:32])=[CH:28][CH:29]=1)=[N:12][CH2:11][CH2:10][C:8]1[O:9][C:5]2[CH:4]=[CH:3][C:2]([CH3:1])=[CH:13][C:6]=2[CH:7]=1)#[N:15]It was obtained by reacting amine (a) with N-cyano-N'-[2-[[[5-(dimethylamino)methyl-2-furanyl]-methyl]thio]ethyl]-S-methyl-isothiourea, as described in Example 2.
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