A convenient synthesis for some new pyrido[3′,2′:4,5]thieno-[3,2-<i>d</i>]pyrimidine derivatives with potential biological activity
作者:Carlos Peinador、Vicente Ojea、José Ma. Quintela
DOI:10.1002/jhet.5570290704
日期:1992.12
Ready, convenient synthesis for 8-cyano-7-ethoxy-4-oxo-9-phenyl-2-substituted-1,2,3,-4-tetrahydropyrido-[3′,2′:,4,5]thieno[3,2-d]pyrimidines 5, 8-cyano-7-ethoxy-4-oxo-9-phenyl-2-substituted-3,4-dihydropyrido[3′,2-: 4,5]thieno[3,2-d]pyrimidines 6, 4-chloro-8-cyano-7-ethoxy-9-phenyl-2-substitutedpyrido[3′,2′:4,5]thieno[3,2-4 -pyrimidines 7 and 8-cyano-7-ethoxy-2-(2′-nitrophenyl)-9-phenyl-4-substitutedpyrido[3′
现成的,方便的合成8-氰基-7-乙氧基-4-氧代-9-苯基-2-取代的1,2,3,4-四氢吡啶基-[3',2':,4,5]噻吩并[ 3,2- d ]嘧啶5,8-氰基-7-乙氧基-4-氧代-9-苯基-2-取代-3,4-二氢吡啶并[3',2-:4,5]噻吩并[3,2 - d ]嘧啶6,4-氯-8-氰基-7-乙氧基-9-苯基-2- substitutedpyrido [3',2':4,5]噻吩并[3,2-4 -pyrimidines 7和8氰基-7-乙氧基-2-(2'-硝基苯基)-9-苯基-4-取代的吡啶基[3',2':4,5]噻吩并[3,2- d ]嘧啶8-18,由2-氯-3 ,5-氰基-6-乙氧基-4-苯基吡啶1 经由3,5-二氰基-6-乙氧基-2-巯基-4-苯基吡啶2和aminocarboxamide 4被报道。另外,肼衍生物12与诸如甲酸和原甲酸三乙酯的试剂的反应产生了稠合的四杂环的8-