New synthesis of pyrido[4,3-b]indoles (γ-carbolines) on the basis of indolin-2-one lactim ether
作者:T. V. Golovko、N. P. Solov’eva、O. S. Anisimova、O. B. Smirnova、M. I. Evstratova、S. S. Kiselev、V. G. Granik
DOI:10.1007/s11172-008-0026-7
日期:2008.1
3-dihydroindole, the reaction of which with dimethylformamide diethyl acetal (or with triethyl orthoformate) and the subsequent cyclization afford 4-cyanopyrido[4,3- b]indoles (γ-carbolines). 3-Amino-4-cyanopyrido[4,3-b]indole was used in the synthesis of substituted pyrimido[4,5-c]-γ-carbolines.
indolin-2-one (oxindole) 内酰胺醚与丙二腈缩合生成 2-dicyanomethylidene-2,3-dihydroindole,其与二甲基甲酰胺乙缩醛(或原甲酸三乙酯)反应,随后环化生成 4-氰基吡啶[4 ,3- b]吲哚(γ-咔啉)。3-氨基-4-氰基吡啶并[4,3-b]吲哚用于合成取代嘧啶并[4,5-c]-γ-咔啉。