𝔖 Bobbio Scriptorium
✦   LIBER   ✦

1H and 13C assignments of three new drimenes from Iresine diffusa Humb. & Bonpl. ex Willd.

✍ Scribed by María Yolanda Rios; Laura Álvarez Berber

Book ID
102531385
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
118 KB
Volume
43
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The structure elucidation and ^1^H and ^13^C assignments of iresin (1) and three new drimenes, 3β,14‐dihydroxy‐Δ^7, 8^‐drimen‐11,12‐acetonide (2), 3β,7β,14‐trihidroxy‐Δ^8, 9^‐drimen‐11,12‐olide (3) and 3β,7α,14‐trihydroxy‐Δ^8, 9^‐drimen‐11,12‐olide (4), isolated from the aerial parts of the medicinal plant Iresine diffusa Humb. & Bonpl. ex Willd. are reported. Copyright © 2005 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

Complete assignments of 1H and 13C NMR d
Complete assignments of 1H and 13C NMR data of three new dihydrophenanthrofurans from Pleione yunnanensis
✍ Hailing Dong; Chunlan Wang; Yan Li; Shunxing Guo; Junshan Yang 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 130 KB 👁 1 views

## Abstract Three new dihydrophenanthrofurans, pleionesins A–C (1–3), together with two known dihydrophenanthrenes (4–5) were isolated from the tubers of __Pleione yunnanensis__ (Rolfe). The complete ^1^H and ^13^C NMR spectra assignments of these compounds were carried out using 1D and 2D NMR expe

Complete assignments of 1H and 13C NMR d
Complete assignments of 1H and 13C NMR data for three new arylnaphthalene lignan from Justicia procumbens
✍ Guorui Liu; Jun Wu; Jianyong Si; Junmei Wang; Meihua Yang 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 100 KB 👁 1 views

## Abstract Three new arylnaphthalene lignans, named neojusticin C (1), procumbenoside C (2) and procumbenoside D (3), have been isolated from the whole plant of __Justicia procumbens__, together with three known ones, justicidinoside B (4), justicidinoside C (5), and diphyllin‐1‐__O__‐β‐D‐apiofura

Complete assignments of 1H and 13C NMR s
Complete assignments of 1H and 13C NMR spectroscopic data for three new stigmastane glycosides from Vernonia cumingiana
✍ Maorong Suo; Junshan Yang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 112 KB 👁 1 views

## Abstract Three new steroidal saponins, Vernoniosides **S1** (**1**), Vernoniosides **S2** (**2**) and Vernoniosides **S3** (**3**) were isolated from the stem of __Vernonia cumingian__. Their chemical structures were elucidated on the basis of MS, NMR spectroscopic and chemical analysis. Complet

Complete assignments of 1H and 13C NMR s
Complete assignments of 1H and 13C NMR spectral data for three new triterpenoid saponins from Ilex hainanensis Merr.
✍ Xiao-Qing Chen; Jie Yang; Xiao-Xiao Liu; Mao-Xiang Lai; Qiang Wang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 112 KB 👁 1 views

## Abstract Three new oleanane‐type triterpenoid saponins, ilexhainanoside C, D and E, all with 24, 28‐dioic acid groups, were isolated from the leaves of __Ilex hainanensis__. They were 3β‐hydroxyolean‐12‐ene‐24, 28‐dioic acid‐28‐__O__‐β‐D‐glucopyranoside(**1**), 3β, 19α‐dihydroxyolean‐12‐ene‐24,

Complete 1H and 13C NMR assignments of t
Complete 1H and 13C NMR assignments of three new polyhydroxylated sterols from the South China Sea gorgonian Subergorgia suberosa
✍ Shu-Hua Qi; Si Zhang; Yi-Fei Wang; Ming-Yi Li 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB

## Abstract Three new polyhydroxylated sterols, 3β,6α,11,20β,24‐pentahydroxy‐ 9,11‐seco‐5α‐24‐ethylcholest‐7,28‐diene‐9‐one (1), 3‐(1′,2′‐ethandiol)‐24‐ methylcholest‐8(9),22__E__‐diene‐3β,5α,6α,7α,11α‐pentaol (2), 24‐methylcholest‐7,22 __E__‐diene‐3β,5α,6β,25‐tetraol (3) together with five known s

Structural and spectral assignment of a
Structural and spectral assignment of a new diterpenoid isolated from Ballota undulata and a complete 1H and 13C NMR data assignment for three other structurally related compounds
✍ Ahmed A. Hussein; María L. Jimeno; Benjamín Rodríguez 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 110 KB 👁 1 views

## Abstract The structure of 3β‐hydroxyballotinone, a new labdane diterpenoid isolated from __Ballota undulata__, has been established by NMR spectroscopic studies. In addition, complete and unambiguous assignments of the ^1^H and ^13^C NMR spectra of three other already known labdanes (ballotinone