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  • Title: Synthesis and analysis of some bis-heterocyclic compounds containing sulphur.
    Author: Mabkhoot YN.
    Journal: Molecules; 2009 May 22; 14(5):1904-14. PubMed ID: 19471210.
    Abstract:
    A facile and convenient synthesis of a series of bisheterocycles 7a,b 10, 12 and 13a,b containing a thieno[2,3-b]thiophene base unit via the versatile, hitherto unreported 3-[3,4-dimethyl-5-(3-nitrilopropanoyl)thieno[2,3-b]thiophen-2-yl]-3-oxopropanenitrile (4) is described.
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