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《Acta Botanica Sinica》 2001-01
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New Steroidal Glycosides from Ophiopogon japonicus

DAI Hao_Fu 1, ZHOU Jun 1 *, TAN Ning_Hua 1, DING Zhong_Tao 2 [WT6BZ](1. Laboratory of Phytochemistry, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, China; 2. Department of Chemistry, Yunnan University, Kunming 65009  
Two new C 27 steroidal glycosides, named ophiopojaponin A (1) and B (2), together with two known ones, were isolated from the tubers of the famous traditional Chinese herb Ophiopogon japonicus Ker_Gawl. The spectroscopic and chemical evidence revealed their structures to be pennogenin 3_O_[2′_O_acetyl_α_L_rhamnopyranosyl (1→2)]_β_D_xylopyranosyl (1→3)_β_D_glucopyranoside (1), 26_O_β_D_glucopyranosyl_(22ξ, 25R)_3β, 14α, 22ξ, 26_tetrahydroxyfurost_5_ene 3_O_α_L_rhamnopyranosyl (1→2)_β_D_glucopyranoside (2), diosgenin 3_O_[α_L_rhamnopyranosyl (1→2)]_β_D_xylopyrano_syl (1→3)_β_D_glucopyranoside (3) and ruscogenin 1_O_[α_L_rhamnopyranosyl (1→2)]_β_D_xylopyranosyl (1→3)_β_D_fucopyranoside (4).
【Fund】: SupportedbyakeyprojectoftheChineseAcademyofSciences (KZ 95 2_J1_111) .
【CateGory Index】: Q946.8
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