𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of [20,21-13C2]-progesterone

✍ Scribed by Gerardo M. Caballero; Eduardo G. Gros


Publisher
John Wiley and Sons
Year
1991
Tongue
French
Weight
263 KB
Volume
29
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The synthesis of, [20,21‐^13^C~2~]‐progesterone (9) from androst‐4‐ene‐3,17‐dione (1) is described. Labels were introduced by two procedures, namely, condensation of 1 with K^13^CN and Grignard reaction of nitrile derivative 7 with [^13^C]‐methylmagnesium iodide. Location of labels was confirmed by ^13^C‐NMR spectroscopy.


📜 SIMILAR VOLUMES


Synthesis of [20,21-13C2]-pregnenolone
✍ Gerardo M. Caballero; Eduardo G. Gros 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 French ⚖ 222 KB 👁 1 views

## Abstract The synthesis of [20,21‐^13^C~2~]‐pregnenolone (7) from androst‐5‐en‐3β‐ol‐17‐one (1) is described. Labelled carbons were introduced by two procedures, namely, condensation of 1 with K^13^CN and Grignard reaction of nitrile derivative 5 with [^13^C]‐methylmagnesium iodide. Location of l

Synthesis of [21-13C]-cholesterol
✍ Gerardo M. Caballero; Eduardo G. Gros 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 French ⚖ 205 KB 👁 1 views

## Abstract The synthesis of [21‐^13^C]‐cholesterol (5) from 3β‐O‐(t‐butyldimethylsilyl)‐17β‐cyano‐androst‐5‐ene (1) is described. Labelled carbon‐atom was introduced by Grignard reaction of nitrile derivative with [^13^C]‐methylmagnesium iodide. Location of label was confirmed by ^13^C‐NMR spectro

Synthesis of [13C2]nifedipine
✍ Kuniaki Ohtaka; Masahiro Kajiwara 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 French ⚖ 63 KB

## Abstract [^13^C~2~]Nifedipine (3) was synthesized from [^13^C]methanol (&1macr;) in two steps. Copyright © 2003 John Wiley & Sons, Ltd.

Synthesis of [2′-13C]biotin
✍ W. A. Etzel; S. Berger 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 French ⚖ 194 KB

## Abstract [2′‐^13^C]Biotin was synthesized in 51% yield by reaction of the hydrolysis product of biotin, 3,4‐diaminotetrahydro‐2‐thiophenvalerianic acid, with [^13^C]phosgene.