Isopropenyl chloroformate → methyl-{5'-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-yl}-carbamic acid isopropenyl ester

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With a method similar to that used for the preparation of 4-{5-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-pyridin-2-yl}-piperazine-1-carboxylic acid isopropyl ester above, methyl-{5′-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-yl}-carbamic acid isopropenyl ester was prepared from 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-methylamino-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-yl)-amide trifluoroacetate and isopropenyl chloroformate. LCMS calcd for C26H26F3N5O4 (m/e) 529, obsd 530 (M+H).

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