M. Boulouard et al., PYRROLOTHIENO[1,4]DIAZEPINES .4. FIRST SYNTHESIS OF PYRROLO[1,2-A]THIENO[2,3-F][1,4]DIAZEPINE DERIVATIVES, Journal of heterocyclic chemistry, 33(6), 1996, pp. 1743-1749
Treatment of 3-(2-formyl-1H-pyrrol-1-yl)-2-thiophenecarboxamide by var
ious nucleophiles like methyl ketones, amines, alcohols, thiols or ace
tates led to new ro-4H-pyrrolo[1,2-a]thieno-[2,3-f][1,4]diazepines.