✦ LIBER ✦

Synthesis of [4-14C]theophylline

✍ Scribed by Michael G. Williams; Albert M. Mattocks

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 206 KB
Volume: 70
Category: Article
ISSN: 0022-3549
DOI: 10.1002/jps.2600700530

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The synthesis and purification of 8-14C-

The synthesis and purification of 8-14C-theophylline

✍ Suzanne M. Lohmann; Ralph P. Miech 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 French ⚖ 181 KB

## Abstract The enzymes responsible for the metabolism of methylated xanthines suah as theophylline, theobromine, and caffeine have until now escaped identification (1, 2). However, a sensitive radiometric method of analysis of theophylline metabolism (3) was made possible by the synthesis and puri

Synthesis of theophylline-8-13C

✍ Charles E. Hignite; David H. Huffman; Daniel L. Azarnoff 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 157 KB

Synthesis of [4-14C]fluasterone

✍ Mingcheng Han; Bruce N. Diel; Peter J. Deardorff; David B. Boaz 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 French ⚖ 72 KB

Synthesis of dexamethasone-4-14C

✍ Pemmaraju Narasimha Rao; James W. Cessac; Kenneth A. Hill 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 French ⚖ 498 KB

## Abstract The bismethylenedioxy (BMD) derivative of dexamethasone **2** was silylated with trimethylchlorosilane and imidazole in dimethylformamide to give the 11β‐trimethylsilyloxy BMD derivative **3**. The Δ^1^ ‐double bond in **3** was hydrogenated over 5% palladium on carbon to give the Δ^4^‐

Synthesis of [4-14C]diosgenin

✍ E. S. Ferdinandi 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 French ⚖ 211 KB

## Abstract [4‐^14^C]‐(25R)‐Spirost‐5‐en‐3β‐ol(diosgenin)__l__, specific activity 3.77 ± 0.02 mCi/mmole, was synthesized in four stees from (25R)‐5‐hydroxyspirost‐5‐en‐3‐oic‐3,5‐lactone 4 and [^14^C] methyl magnesium iodide with an overall yield of 18%. The preparation of the starting lactone from

Synthesis of [4-14C]-pelargonidin chlori

Synthesis of [4-14C]-pelargonidin chloride and [4-14C]-delphinidin chloride

✍ Michael Kraus; Ellen Biskup; Elke Richling; Peter Schreier 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 French ⚖ 157 KB 👁 1 views

The synthesis of [4-14 C]-pelargonidin chloride and [4-14 C]-delphinidin chloride via [formyl-14 C]-2-(benzoyloxy)-4,6-dihydroxybenzaldehyde, o,4-diacetoxyacetophenone and o,3,4,5-tetraacetoxyacetophenone is described. The first step comprised labelling of the carbonyl group of 2-(benzoyloxy)-4,6-di