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Complete 1H and 13C NMR assignments for two new monodesmoside saponins from Pentaclethra macroloba (Willd.) Kuntze.
Magn Reson Chem. 2004 Aug; 42(8):695-9.MR

Abstract

A detailed NMR study and full assignments of the 1H and 13C spectral data for two novel triterpenoid saponins isolated from the stem bark of Pentaclethra macroloba (Willd.) Kuntze are described. Their structures were established using a combination of 1D and 2D NMR techniques including 1H,1H-COSY, TOCSY, NOESY, gs-HMQC and gs-HMBC, and also electrospray ionization mass spectrometry and chemical methods. The structures were established as 3beta-O-([O-beta-D-glucopyranosyl-(1-->2)-O-beta-D-glucopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-[O-beta-D-glucopyranosyl-(1-->3)-O-beta-D-glucopyranosyl-(1-->4)])-alpha-L-arabinopyranosylhederagenin (1) and 3beta-O-)[O-beta-D-glucopyranosyl-(1-->2)-O-beta-D-glucopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-[O-beta-D-glucopyranosyl-(1-->3)-O-beta-D-glucopyranosyl-(1-->4)])-alpha-L-arabinopyranosyloleanolic acid (2).

Authors+Show Affiliations

Viana FA
Universidade do Estado do Rio Grande do Norte, Mossoró, RN 59610-210, Brazil.
Pouliquen YB
No affiliation info available
Andrade-Neto M
No affiliation info available
Santiago GM
No affiliation info available
Pessoa OD
No affiliation info available
Rodrigues-Filho E
No affiliation info available
Braz-Filho R
No affiliation info available

MeSH

Carbohydrate SequenceCarbon IsotopesFabaceaeHydrogenMolecular Sequence DataMolecular StructureNuclear Magnetic Resonance, BiomolecularPlant BarkSapogeninsSaponins

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15248257

Citation

Viana, Francisco Arnaldo, et al. "Complete 1H and 13C NMR Assignments for Two New Monodesmoside Saponins From Pentaclethra Macroloba (Willd.) Kuntze." Magnetic Resonance in Chemistry : MRC, vol. 42, no. 8, 2004, pp. 695-9.
Viana FA, Pouliquen YB, Andrade-Neto M, et al. Complete 1H and 13C NMR assignments for two new monodesmoside saponins from Pentaclethra macroloba (Willd.) Kuntze. Magn Reson Chem. 2004;42(8):695-9.
Viana, F. A., Pouliquen, Y. B., Andrade-Neto, M., Santiago, G. M., Pessoa, O. D., Rodrigues-Filho, E., & Braz-Filho, R. (2004). Complete 1H and 13C NMR assignments for two new monodesmoside saponins from Pentaclethra macroloba (Willd.) Kuntze. Magnetic Resonance in Chemistry : MRC, 42(8), 695-9.
Viana FA, et al. Complete 1H and 13C NMR Assignments for Two New Monodesmoside Saponins From Pentaclethra Macroloba (Willd.) Kuntze. Magn Reson Chem. 2004;42(8):695-9. PubMed PMID: 15248257.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Complete 1H and 13C NMR assignments for two new monodesmoside saponins from Pentaclethra macroloba (Willd.) Kuntze. AU - Viana,Francisco Arnaldo, AU - Pouliquen,Yvone Brígido M, AU - Andrade-Neto,Manoel, AU - Santiago,Gilvandete Maria P, AU - Pessoa,Otília Deusdênia L, AU - Rodrigues-Filho,Edson, AU - Braz-Filho,Raimundo, PY - 2004/7/13/pubmed PY - 2005/4/5/medline PY - 2004/7/13/entrez SP - 695 EP - 9 JF - Magnetic resonance in chemistry : MRC JO - Magn Reson Chem VL - 42 IS - 8 N2 - A detailed NMR study and full assignments of the 1H and 13C spectral data for two novel triterpenoid saponins isolated from the stem bark of Pentaclethra macroloba (Willd.) Kuntze are described. Their structures were established using a combination of 1D and 2D NMR techniques including 1H,1H-COSY, TOCSY, NOESY, gs-HMQC and gs-HMBC, and also electrospray ionization mass spectrometry and chemical methods. The structures were established as 3beta-O-([O-beta-D-glucopyranosyl-(1-->2)-O-beta-D-glucopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-[O-beta-D-glucopyranosyl-(1-->3)-O-beta-D-glucopyranosyl-(1-->4)])-alpha-L-arabinopyranosylhederagenin (1) and 3beta-O-)[O-beta-D-glucopyranosyl-(1-->2)-O-beta-D-glucopyranosyl-(1-->4)-O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-rhamnopyranosyl-(1-->2)]-[O-beta-D-glucopyranosyl-(1-->3)-O-beta-D-glucopyranosyl-(1-->4)])-alpha-L-arabinopyranosyloleanolic acid (2). SN - 0749-1581 UR - https://www.unboundmedicine.com/medline/citation/15248257/Complete_1H_and_13C_NMR_assignments_for_two_new_monodesmoside_saponins_from_Pentaclethra_macroloba__Willd___Kuntze_ DB - PRIME DP - Unbound Medicine ER -