𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Quantitative determination of cephalexin in cephradine by NMR spectroscopy

✍ Scribed by R. J. Warren; J. E. Zarembo; D. B. Staiger; A. Post


Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
210 KB
Volume
67
Category
Article
ISSN
0022-3549

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Determination of enantiomeric excess by
✍ V. N. Gogte; R. K. Nanda; A. A. Natu; V. S. Pandit; M. K. Sastry 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 283 KB

Oxazolidine derivatives of p-amino alcohols such as ephedrine have been resolved by -C NMR spedroscopy using Eu(hfc), as a chiral shift reagent. The method is quantitative in the determination of enantiomeric excess, and is advantageous where 'H NMR is of limited use owing, for example, to signitica

Quantitative determination of aliphatic
✍ H. Koskela; T. Väänänen 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

## Abstract Quantitative analysis of complex mixtures by NMR is often hampered by heavily overlapping signals in 1D ^1^H or ^13^C spectra. To resolve the overlap problem, we have been looking at the possibilities of using heteronuclear correlated 2D NMR methods for quantification. In this work, we

Structure determination of bioactive gal
✍ Viqar Uddin Ahmad; Muhammad Zubair; Muhammad Athar Abbasi; Muhammad Abid Rashid; 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 98 KB

## The investigation of the chemical constituents of Symplocos racemosa Roxb led to the isolation of two new glycosides, symcomoside A (1) and symcomoside B (2), together with one known glycoside, tortoside C (3), which is reported for the first time from this plant. The structures of the new comp

Structure determination of ramosine, a g
✍ Sher Bahadar Khan; Nighat Afza; Abdul Malik; Azhar ul Haq; Zaheer Ahmed 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 112 KB

## Abstract Ramosine, a new sesquiterpene lactone, was isolated from the chloroform fraction of __Amberboa ramosa__ and the structure was assigned as 4β‐(hydroxymethyl)‐3β,4α‐dihydroxy‐8α‐[(__S__)‐3‐hydroxy‐2‐ethylenepropionyloxy]‐1αH, 5αH,6βH,7αH,11βH,11α‐methylguaia‐10(14)‐en‐6, 12‐olide by exten