Abstract
The new anthraquinones, 6,7-dimethoxy xanthopurpurin, 6-hydroxy-7-methoxy rubiadin, 5-hydroxy-6-hydroxymethyl anthragallol 1,3-dimethyl ether, 7-carboxy anthragallol 1,3-dimethyl ether, anthragallol 1-methyl ether
3-O-β-
d-
glucopyranoside
, anthragallol 1-methyl ether 3-
O-rutinoside, anthragallol 3-
O-rutinoside and alizarin 1-methyl ether 2-
O-primeveroside were isolated from the CH
2Cl
2 and n-BuOH extracts of
Galium sinaicum roots and their structures were established by various spectroscopic techniques. In addition, two known anthraquinones were also isolated and fully characterized.