Inhibitors of cyclic AMP phosphodiesterase in Picrasma quassioides Bennet, and inhibitory activities of related .BETA.-carboline alkaloids.
作者:YEOLIK SUNG、KAZUO KOIKE、TAMOTSU NIKAIDO、TAICHI OHMOTO、USHIO SANKAWA
DOI:10.1248/cpb.32.1872
日期:——
Cyclic adenosine monophosphate (cAMP) phosphodiesterase inhibitors present in Picrasma quassioides BENN. were identified as 1-methoxycarbonyl-β-carboline, 4, 5-dimethoxycanthin-6-one and 5-hydroxy-4-methoxycanthin-6-one. The structure-inhibitory activity relationships were studied in 31 derivatives of β-carboline, 2 dimeric derivatives of β-carboline and 12 derivatives of canthin-6-one. β-Carboline derivatives with a methoxycarbonyl group and canthin-6-one derivatives with a methoxyl group generally had a strong inhibitory effect on cAMP phosphodiesterase.
Picrasma quassioides BENN 中存在环磷酸腺苷 (cAMP) 磷酸二酯酶抑制剂。经鉴定为1-甲氧基羰基-β-咔啉、4, 5-二甲氧基斑素-6-酮和5-羟基-4-甲氧基斑素-6-酮。研究了31种β-咔啉衍生物、2种β-咔啉二聚体衍生物和12种canthin-6-one衍生物的结构-抑制活性关系。带有甲氧基羰基的β-咔啉衍生物和带有甲氧基的canthin-6-one衍生物一般对cAMP磷酸二酯酶有较强的抑制作用。