Mark C. Bagley, James W. Dale, Xin Xiong, Justin F. Bower
Abstract
[reaction: see text] Dimethyl sulfomycinamate, the oxazole-thiazole-pyridine product generated in the methanolysis of the thiopeptide antibiotic sulfomycin I, is prepared in 13 steps and 8% overall yield by the Bohlmann-Rahtz heteroannulation of 1-(oxazol-4-yl)enamines and methyl 4-(trimethylsilyl)-2-oxobut-3-ynoate.
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[reaction: see text] Dimethyl sulfomycinamate, the oxazole-thiazole-pyridine product generated in the methanolysis of the thiopeptide antibiotic sulfomycin I, is prepared in 13 steps and 8% overall yield by the Bohlmann-Rahtz heteroannulation of 1-(oxazol-4-yl)enamines and methyl 4-(trimethylsilyl)-2-oxobut-3-ynoate.
Key concepts: Oxazole, Chemistry, Yield (engineering), Thiazole, Trimethylsilyl, Pyridine, Medicinal chemistry, Organic chemistry