30021-77-3 9-(1,3-Benzodioxol-5-yl)-4-(beta-D-glucopyranosyloxy)-6,7-dimethoxynaphtho(2,3-c)furan-1(3H)-one Clei B Cleistanthin B Naphtho(2,3-c)furan-1(3H)-one, 9-(1,3-benzodioxol-5-yl)-4-(beta-D-glucopyranosyloxy)-6,7-dimethoxy-