𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Relative and absolute configurations of the quinolizidine alkaloids anagyrine and thermopsine and assignment of the 1H and 13C NMR spectra of anagyrine

✍ Scribed by David J. Robins; David S. Rycroft

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
248 KB
Volume
30
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A recent proposal to revise the relative configurations of the quinolizidine alkaloids anagyrine and thermopsine is refuted. ^1^H and ^13^C NMR chemical shift assignments of anagyrine which were published at the same time are erroneous, and assignments published slightly earlier by the present authors should be retained.

📜 SIMILAR VOLUMES

Assignment of the 1H and 13C NMR spectra
Assignment of the 1H and 13C NMR spectra of the quinolizidine alkaloid anagyrine and determination of its conformation
✍ David S. Rycroft; David J. Robins; Ian H. Sadler 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 430 KB

## Abstract The ^1^H NMR spectrum of the quinolizidine alkaloid ( − )‐ anagyrine has been studied at 200 and 600 MHz. A full assignment of the ^1^H signals has been achieved by application of a variety of NMR techniques, including homo‐nuclear spin decoupling, NOE difference, 2D δ~H~/δ~H~ COSY and

Total structural assignment and absolute
Total structural assignment and absolute configuration of terreinol by 13C and 1H NMR
✍ Fernando César de Macedo Jr; Anita Jocelyne Marsaioli 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB

## Abstract The carbon–carbon connectivity of terreinol, a new metabolite isolated from __Aspergillus terreus__, and its previous ^13^C assignments were confirmed by a two‐dimensional INADEQUATE experiment using a few milligrams of the compound with natural ^13^C abundance. The carbon–carbon correl

Assignment of the 1H and 13C NMR spectra
Assignment of the 1H and 13C NMR spectra and conformational analysis of the pyrrolizidine alkaloid 13-O-acetyldicrotaline
✍ David S. Rycroft; Iain R. Stirling; David J. Robins 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 305 KB

## Abstract The ^1^H and ^13^C NMR spectra of the pyrrolizidine alkaloid 13‐__O__‐acetyldicrotaline were studied at 4.7 T. A full assignment of the ^1^H and ^13^C signals was achieved by application of a variety of NMR techniques, including homonuclear ^1^H NOE difference, 2D δ~H~/δ~H~ phase‐sensit

Assignment of the 13C NMR spectrum of an
Assignment of the 13C NMR spectrum of anisomycin and the 1H and 13C NMR spectra of deacetylanisomycin
✍ J. W. LeFevre; S. E. Maier; W. Deng 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB

## Abstract The ^13^C NMR spectrum of anisomycin and the ^1^H and ^13^C NMR spectra of deacetylanisomycin were assigned using one‐ and two‐dimensional NMR analysis. The techniques included INEPT, ^1^H^13^C HETCORR and ^1^H‐^1^H COSY spectroscopy.

Complete assignment of the 1H and 13C NM
Complete assignment of the 1H and 13C NMR spectra of thioquinanthrene and isothioquinanthrene
✍ Andrzej Maślankiewicz; Krystian Pluta; Mirosław Wyszomirski; Adolf Gogoll; Maria 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 189 KB 👁 2 views

The proton and carbon chemical shifts and the coupling constants nJ(H,H) and nJ(C,H) of thioquinanthrene and isothioquinanthrene were completely assigned from COSY, HETCOR and INEPT studies. 1998 ( John Wiley & Sons, Ltd.