作者:Milan Čačič、Mladen Trkovnik、Elizabeta Has-Schön
DOI:10.1002/jhet.5570400513
日期:2003.9
corresponding 3-alkyl-1-[2-(7-hydroxy-2-oxo-2H-chromeno-4-yl)-acetyl]-1H-chromeno[4,3-c]pyrazole-4-one 5a-d, 3-alkyl-1-[2-(4-methyl-2-oxo-2H-chromeno-7-yloxy)-acetyl]-1H-chromeno[4,3-c]pyrazole-4-one 6a-d, and 1-4-[(3-alkyl-1H-chromeno[4,3-c]pyrazole-4-one-1-yl)-carbonylmethyl]-2-oxo-2H-chromen-7-yloxy-acetyl}-3-alkyl-1H-chromeno[4,3-c]pyrazole-4-one 7a-d.
将3-酰基-4-羟基-2-氧代-2-氧-2- H-色烯衍生物1a-d与(7-羟基-2-氧代-2 H-铬代-4-基)-乙酸酰肼2缩合,(4-甲基-2-氧代-2 H-铬基-7-酰氧基)-乙酸酰肼3和(7-肼基羰基甲氧基-2-氧代-2 H-铬基-4-基)-乙酸酰肼4,得到相应的3 -烷基-1- [2-(7-羟基-2-氧代-2 H -chromeno-4-yl)-乙酰基] -1 H -chromeno [4,3 - c ]吡唑-4-one 5a-d, 3-烷基-1- [2-(4-甲基-2-氧代-2 H-苯甲基-7-基氧基)-乙酰基] -1 H-苯甲基[4,3- c]吡唑-4-酮6a-d和1- 4-[((3-烷基-1 H -chromeno [4,3 - c ]吡唑-4-酮-1-基)-羰基甲基] -2-氧-2 H-色烯基-7-烷氧基-乙酰基} -3-烷基-1 H-色胺基[4,3 - c ]吡唑-4-酮7a-d。