Synthesis of tetracyclic azasugars fused benzo[e][1,3]thiazin-4-one by the tandem Staudinger/aza-Wittig/cyclization and their HIV-RT inhibitory activity.
Sign Up to like & getrecommendations! Published in 2018 at "Carbohydrate research"
DOI: 10.1016/j.carres.2017.12.005
Abstract: Azasugar aldehydes 6a and 6b containing azido groups were prepared from D-mannose. Three novel tetracyclic azasugars fused benzo[e][1,3]thiazin-4-one 9a-1, 9a-2 and 9a-3 were conveniently synthesized from 6a by the tandem intramolecular Staudinger/aza-Wittig/cyclization reaction under microwave… read more here.
Keywords: tetracyclic azasugars; fused benzo; benzo thiazin; azasugars fused ... See more keywords
A Ru(II)-Catalyzed C–H Activation and Annulation Cascade for the Construction of Highly Coumarin-fused Benzo[a]quinolizin-4-ones and Pyridin-2-ones
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DOI: 10.1039/d3qo00255a
Abstract: A Ru(II)-catalyzed C–H activation and annulation cascade were successfully established for the constructions of coumarin-fused benzo[a]quinolizin-4-ones and pyridin-2-ones, in which the intriguing 6-6-6-6-6 pentacyclic coumarin-fused scaffold was formed by a... read more here.
Keywords: annulation cascade; fused benzo; catalyzed activation; coumarin fused ... See more keywords