Synthesis of 3-Substituted Pyrido[4′,3′:4,5]thieno[2,3-d]pyrimidines and Related Fused Thiazolo Derivatives
作者:Essam Kh. Ahmed
DOI:10.1080/10426500307796
日期:2003.4
3-(substituted)-4-oxo-2-thioxo-1,2,3,4,5,6,7,8-octahydropyrido[4',3':4,5]thieno-[2,3-d]pyrimidine-7-carboxylates ( 3a , b ), ( 6 ),( 11-13 ), ethyl 3-methyl-5-oxo-2,3,6,9-tetrahydro 5 H -pyrido[4',3':4,5]thieno[2,3-d][1,3]thiazolo[3,2-a]pyrimidine-8(7H)-carboxylate ( 4 ), and ethyl 2-methyl-5-oxo-2,3,6,9-tetrahydro-5 H -pyrido[4',3':4,5]thieno[2,3-d][1,3]thiazolo[3,2-a]-pyrimidine-8(7H)-carboxylate ( 8 ) have been
新乙基 3-(取代)-4-oxo-2-thioxo-1,2,3,4,5,6,7,8-octahydropyrido[4',3':4,5]thieno-[2,3 -d]pyrimidine-7-carboxylates (3a,b), (6),(11-13), 乙基 3-methyl-5-oxo-2,3,6,9-四氢 5H-pyrido[4', 3':4,5]thieno[2,3-d][1,3]thiazolo[3,2-a]pyrimidine-8(7H)-carboxylate (4), andethyl 2-methyl-5-oxo- 2,3,6,9-四氢-5H-吡啶并[4',3':4,5]噻吩并[2,3-d][1,3]噻唑并[3,2-a]-嘧啶-8 (7H)-羧酸酯 (8) 已由 2-异硫氰酸根合-4,5,6,7-四氢噻吩并[2,3-c]吡啶-3,6-二羧酸二乙酯 1 合成。这些化合物