A new flavone glycoside, named mahuangchiside, was isolated from the root of Chirita fimbrisepala Hand.-Mazz. The structure was elucidated as 5,4'-dihydroxy-6-methoxyflavone-7-O-beta-D-xylopyranosyl(1-->2)-beta...A new flavone glycoside, named mahuangchiside, was isolated from the root of Chirita fimbrisepala Hand.-Mazz. The structure was elucidated as 5,4'-dihydroxy-6-methoxyflavone-7-O-beta-D-xylopyranosyl(1-->2)-beta-D-xylopyranoside on the basis of spectral analysis (H-1-H-1 COSY. C-13-H-1 HETCOR and HMBC) and chemical evidence.展开更多
报道了浙江省的2个浙江分布新记录种,分别是发现于遂昌九龙山的梵净山石斛兰Dendrobium fanjingshanense Z.H.Tsi ex X.H.Jin et Y.W.Zhang和发现于永嘉龙湾潭蚂蝗七Chirita fimbrisepala Hand.-Mazz.。引证标本存于浙江林学院植物标本...报道了浙江省的2个浙江分布新记录种,分别是发现于遂昌九龙山的梵净山石斛兰Dendrobium fanjingshanense Z.H.Tsi ex X.H.Jin et Y.W.Zhang和发现于永嘉龙湾潭蚂蝗七Chirita fimbrisepala Hand.-Mazz.。引证标本存于浙江林学院植物标本馆(ZJFC)。展开更多
文摘A new flavone glycoside, named mahuangchiside, was isolated from the root of Chirita fimbrisepala Hand.-Mazz. The structure was elucidated as 5,4'-dihydroxy-6-methoxyflavone-7-O-beta-D-xylopyranosyl(1-->2)-beta-D-xylopyranoside on the basis of spectral analysis (H-1-H-1 COSY. C-13-H-1 HETCOR and HMBC) and chemical evidence.
文摘报道了浙江省的2个浙江分布新记录种,分别是发现于遂昌九龙山的梵净山石斛兰Dendrobium fanjingshanense Z.H.Tsi ex X.H.Jin et Y.W.Zhang和发现于永嘉龙湾潭蚂蝗七Chirita fimbrisepala Hand.-Mazz.。引证标本存于浙江林学院植物标本馆(ZJFC)。