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Paper | Regular issue | Vol 36, No. 7, 1993, pp.1631-1639
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6375
Synthesis of Novel, Fused Benzoxazocines by an Unexpected Intramolecular Cyclisation

William J. Coates and Dashyant Dhanak*

*SmithKline Beecham Pharmacuticals, The Frythe, Welwyn, Hertfordshire, AL6 9AR, U.K.


Novel, fused benzoxazocines are obtained from the treatment of 2-(2-(3-hydroxypropoxy)phenyl)benzimidazole and imidazopyridine derivatives with trifluoroacetic anhydride followed by heating in HMPA.