Abstract: | Two new C27 steroidal glycosides, named ophiopojaponin A (1) and B (2), were isolated from the tubers of famous traditional Chinese herb(Ophiopogon japonicus. The spectroscopic and chemical evidences revealed their structures to be Pennogenin 3-O-[2'-O-acetyl-(-L-rhamnopyranosyl (1?2)]-(-D-xylopyranosyl (1?3)-(-D-glucopyranoside (1) and 26-O-(-D-glucopyranosyl-(22(, 25R)-3(, 14(, 22(, 26-tetrahydroxyfurost-5-ene 3-O-(-L-rhamnopyranosyl (1?2)-(-D-glucopyranoside (2), respectively. |