反应详情

Utilizing the procedure described in example 14.5 except substituting 4-[6-chloro-1-(tetrahydro-pyran-2-yl)-3-vinyl-1H-pyrazolo[3,4-b]pyridine-4-carbonyl]-piperazine-1-carboxylic acid tert-butyl ester with 6-chloro-1-(tetrahydro-pyran-2-yl)-3-vinyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid ethyl ester and substituting (3-iodo-benzyl)-dimethyl-amine for iodobenzene, 6-chloro-3-((E)-styryl)-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid ethyl ester was obtained (2.8 g, 65%) as a yellow solid.