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Four new oleanane type saponins from Morina nepalensis var. alba.
J Asian Nat Prod Res. 2003 Jun; 5(2):75-82.JA

Abstract

Four new oleanane type saponins, monepalosides G-J (1-4), were isolated from the water-soluble part of the whole plant of Morina nepalensis var. alba Hand-Mazz. On the basis of chemical and spectroscopic evidence, their structures were determined as 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside G, 1), 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside H, 2), 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside I, 3), 3-O-beta-D-glucopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 3)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside J, 4), respectively. Two-dimensional NMR spectra, including H-H COSY, HMQC, 2D HMQC-TOCSY, HMBC and ROESY were utilized in the structure elucidation and complete assignments of 1H and 13C NMR spectra.

Authors+Show Affiliations

Teng RW
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
Xie HY
No affiliation info available
Liu XK
No affiliation info available
Wang DZ
No affiliation info available
Yang CR
No affiliation info available

MeSH

ChinaDrugs, Chinese HerbalMagnoliopsidaMolecular StructureNuclear Magnetic Resonance, BiomolecularPlant ExtractsSaponinsSpectrometry, Mass, Fast Atom BombardmentTriterpenes

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12765190

Citation

Teng, Rong-Wei, et al. "Four New Oleanane Type Saponins From Morina Nepalensis Var. Alba." Journal of Asian Natural Products Research, vol. 5, no. 2, 2003, pp. 75-82.
Teng RW, Xie HY, Liu XK, et al. Four new oleanane type saponins from Morina nepalensis var. alba. J Asian Nat Prod Res. 2003;5(2):75-82.
Teng, R. W., Xie, H. Y., Liu, X. K., Wang, D. Z., & Yang, C. R. (2003). Four new oleanane type saponins from Morina nepalensis var. alba. Journal of Asian Natural Products Research, 5(2), 75-82.
Teng RW, et al. Four New Oleanane Type Saponins From Morina Nepalensis Var. Alba. J Asian Nat Prod Res. 2003;5(2):75-82. PubMed PMID: 12765190.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Four new oleanane type saponins from Morina nepalensis var. alba. AU - Teng,Rong-Wei, AU - Xie,Hong-Yan, AU - Liu,Xi-Kui, AU - Wang,De-Zu, AU - Yang,Chong-Ren, PY - 2003/5/27/pubmed PY - 2003/8/26/medline PY - 2003/5/27/entrez SP - 75 EP - 82 JF - Journal of Asian natural products research JO - J Asian Nat Prod Res VL - 5 IS - 2 N2 - Four new oleanane type saponins, monepalosides G-J (1-4), were isolated from the water-soluble part of the whole plant of Morina nepalensis var. alba Hand-Mazz. On the basis of chemical and spectroscopic evidence, their structures were determined as 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside G, 1), 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside H, 2), 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside I, 3), 3-O-beta-D-glucopyranosyl-(1 --> 4)-beta-D-glucopyranosyl-(1 --> 3)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1 --> 6)-beta-D-glucopyranoside (monepaloside J, 4), respectively. Two-dimensional NMR spectra, including H-H COSY, HMQC, 2D HMQC-TOCSY, HMBC and ROESY were utilized in the structure elucidation and complete assignments of 1H and 13C NMR spectra. SN - 1028-6020 UR - https://www.unboundmedicine.com/medline/citation/12765190/Four_new_oleanane_type_saponins_from_Morina_nepalensis_var__alba_ DB - PRIME DP - Unbound Medicine ER -