Occurrence of marinobufotoxin and telocinobufotoxin homologs in the skin of Bufo bankorensis Borbour.
作者:KAZUTAKE SHIMADA、YOSHIHIRO SATO、TOSHIO NAMBARA
DOI:10.1248/cpb.35.2300
日期:——
The occurrence of marinobufagin 3-succinyl-L-arginine and 3-glutaryl-L-arginine esters, and telocinobufagin 3-glutaryl-L-arginine ester, together with seven known bufogenins, in the skin of Bufo bankorensis BORBOUR, is reported. The structures were elucidated by degradative means and/or direct comparison with authentic samples. These compounds were assayed for inhibitory activity towards guinea pig heart Na+, K+-adenosine triphosphatase.
报告了在 Bufo bankorensis BORBOUR 的皮肤中发现的 marinobufagin 3-琥珀酰-L-精氨酸和 3-谷氨酰-L-精氨酸酯、telocinobufagin 3-谷氨酰-L-精氨酸酯以及七种已知的蟾蜍苷元。通过降解方法和/或与真品直接比较,阐明了这些化合物的结构。这些化合物对豚鼠心脏 Na+、K+-腺苷三磷酸酶具有抑制活性。