Synthesis, structure and some reactions of 4a',5′,6′,7′,8′,8a'-hexahydro-4′<i>H</i>-spiro[cyclohexane-1,9′-[1,2,4]triazolo[5,1-<i>b</i>]-quinazolines]
作者:Victor M. Chernyshev、Dmitry A. Khoroshkin、Andrey N. Sokolov、Vitaly A. Taranushich、Eugene S. Gladkov、Svetlana V. Shishkina、Oleg V. Shishkin、Sergey M. Desenko
DOI:10.1002/jhet.5570450527
日期:2008.9
2′-Substituted 5′,6′,7′,8′-tetrahydro-4′H-spiro[cyclohexane-1,9′-[1,2,4]triazolo[5,1-b]quinazolines] 3a-d were synthesized by condensation of 3-substituted 5-amino-1,2,4-triazoles 1a-d with 2-cyclohexylidene cyclohexanone 2 in DMF. The compounds 3 were hydrogenated with sodium borohydride in ethanol to give 2′-substituted cis-4a',5′,6′,7′,8′,8a'-hexahydro-4′H-spiro[cyclohexane-1,9′-[1,2,4]triazolo[5
2'-取代5',6',7',8'-四氢-4' ħ -螺[环己烷-1,9' - [1,2,4]三唑并[5,1- b ]喹唑啉] 3A- d通过3-取代的-5-氨基-1,2,4-三唑的缩合合成1A-d与2-亚环己基环己酮2在DMF中。化合物3与钠硼氢化氢化在乙醇中,得到2'-取代的顺式-4a”,5',6',7',8',8a'六氢-4' ħ -螺[环己烷-1,9' -[1,2,4]三唑并[5,1- b ]喹唑啉] 4a-d高产。化合物的烷基化,酰化和磺酰化反应4被研究了。根据包括HSQC,HMBC,NOESY技术在内的NMR测量确定合成的化合物的结构,并通过6和11b的X射线分析对其进行确认。所述的合成方案提供了快速获得新颖且被不同取代的氢化[1,2,4]三唑并[5,1- b ]喹唑啉的途径。