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4 results on '"stauntogenin G"'

1. 14,15-Secopregnane-Type Glycosides with 5 α:9α-Peroxy and ▵ 6,8(14)-diene Linkages from the Roots of Cynanchum stauntonii.

Author

An-Jun Deng, Jin-Qian Yu, Zhi-Hong Li, Lin Ma, Zhi-Hui Zhang, and Hai-Lin Qin

Subjects
*GLYCOSIDES, *ASCLEPIADOIDEAE, *AGLYCONES, *STEROIDS, *PLANT roots, *ANALYTICAL chemistry
Abstract

Three new 14,15-secopregnane-type glycosides, stauntosides UA, UA1, and UA2, were isolated from the roots of Cynanchum stauntonii. The three compounds share the first reported and same basic structural features of 3β-hydroxy-14:16,15:20,18:20-triepoxy-5α :9α -peroxy-14,15- secopregnane-6,8(14)-diene named as stauntogenin G as the aglycones. The structures of the new compounds were characterized on the basis of extensive spectroscopic analyses, mainly 1D and 2D NMR and MS methods and chemical analysis. The isolation and identification of the new compounds graced the structural diversity of pregnane-type steroids from C. stauntonii. [ABSTRACT FROM AUTHOR]

Published
2017
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2. 14,15-Secopregnane-Type Glycosides with 5α:9α-Peroxy and Δ6,8(14)-diene Linkages from the Roots of Cynanchum stauntonii

Author

An-Jun Deng, Jin-Qian Yu, Zhi-Hong Li, Lin Ma, Zhi-Hui Zhang, and Hai-Lin Qin

Subjects
Cynanchum stauntonii, Asclepiadaceae, 14,15-secopregnane-type glycoside, stauntogenin G, 5α:9α-peroxy linkage, stauntosides UA, UA1, and UA2, structure elucidation, Organic chemistry, QD241-441
Abstract

Three new 14,15-secopregnane-type glycosides, stauntosides UA, UA1, and UA2, were isolated from the roots of Cynanchum stauntonii. The three compounds share the first reported and same basic structural features of 3β-hydroxy-14:16,15:20,18:20-triepoxy-5α:9α-peroxy-14,15-secopregnane-6,8(14)-diene named as stauntogenin G as the aglycones. The structures of the new compounds were characterized on the basis of extensive spectroscopic analyses, mainly 1D and 2D NMR and MS methods and chemical analysis. The isolation and identification of the new compounds graced the structural diversity of pregnane-type steroids from C. stauntonii.

Published
2017
Full Text
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3. 14,15-Secopregnane-Type Glycosides with 5α:9α-Peroxy and Δ6,8(14)-diene Linkages from the Roots of Cynanchum stauntonii

Author

Lin Ma, Jin-Qian Yu, Hai-Lin Qin, An-Jun Deng, Zhi-Hong Li, and Zhi-Hui Zhang

Subjects
Magnetic Resonance Spectroscopy, Diene, Stereochemistry, Pharmaceutical Science, Structural diversity, Cynanchum, 01 natural sciences, Plant Roots, Article, Mass Spectrometry, Analytical Chemistry, lcsh:QD241-441, chemistry.chemical_compound, Asclepiadaceae, lcsh:Organic chemistry, Drug Discovery, Cynanchum stauntonii, 14,15-secopregnane-type glycoside, stauntogenin G, 5α:9α-peroxy linkage, stauntosides UA, UA1, and UA2, structure elucidation, Glycosides, Physical and Theoretical Chemistry, chemistry.chemical_classification, Apocynaceae, biology, Molecular Structure, 010405 organic chemistry, Organic Chemistry, Glycoside, Nuclear magnetic resonance spectroscopy, biology.organism_classification, 0104 chemical sciences, 010404 medicinal & biomolecular chemistry, chemistry, Chemistry (miscellaneous), Molecular Medicine, Steroids, Two-dimensional nuclear magnetic resonance spectroscopy
Abstract

Three new 14,15-secopregnane-type glycosides, stauntosides UA, UA1, and UA2, were isolated from the roots of Cynanchum stauntonii. The three compounds share the first reported and same basic structural features of 3β-hydroxy-14:16,15:20,18:20-triepoxy-5α:9α-peroxy-14,15-secopregnane-6,8(14)-diene named as stauntogenin G as the aglycones. The structures of the new compounds were characterized on the basis of extensive spectroscopic analyses, mainly 1D and 2D NMR and MS methods and chemical analysis. The isolation and identification of the new compounds graced the structural diversity of pregnane-type steroids from C. stauntonii.

Published
2017

4. 14,15-Secopregnane-Type Glycosides with 5α:9α-Peroxy and Δ 6,8(14) -diene Linkages from the Roots of Cynanchum stauntonii.

Author

Deng AJ, Yu JQ, Li ZH, Ma L, Zhang ZH, and Qin HL

Subjects
Apocynaceae chemistry, Magnetic Resonance Spectroscopy, Mass Spectrometry, Molecular Structure, Steroids chemistry, Cynanchum chemistry, Glycosides chemistry, Plant Roots chemistry
Abstract

Three new 14,15-secopregnane-type glycosides, stauntosides UA, UA₁, and UA₂, were isolated from the roots of Cynanchum stauntonii . The three compounds share the first reported and same basic structural features of 3β-hydroxy-14:16,15:20,18:20-triepoxy-5α:9α-peroxy-14,15-secopregnane-6,8(14)-diene named as stauntogenin G as the aglycones. The structures of the new compounds were characterized on the basis of extensive spectroscopic analyses, mainly 1D and 2D NMR and MS methods and chemical analysis. The isolation and identification of the new compounds graced the structural diversity of pregnane-type steroids from C. stauntonii ., Competing Interests: The authors declare no conflict of interest.

Published
2017
Full Text
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