1.
Molecules
; 16(9): 7706-14, 2011 Sep 08.
Article
in English
| MEDLINE
| ID: mdl-21904270
ABSTRACT
Treatment of 1-(5-acetyl-3,4-dimethythieno[2,3-b]thiophene-2yl)ethanone (1) with dimethylformamide dimethyl acetal afforded enaminone derivative 2, which reacted with amino derivatives to give the corresponding bis-pyrimidine, bis-pyrazole, bis-triazolo-pyrimidine and bis-benzoimidazopyrimidine derivatives.