## Abstract Org 37462 (1) is the active ingredient in Orgalutran^ยฎ^, an innovative product that reduces the time of treatment in __in vitro__ fertilization from four to less than two weeks. Org 37462 is a synthetic decapeptide containing several amino acids that are unnatural in stereochemistry and
The synthesis of org 3770 labelled with 3H, 13C AND 14C
โ Scribed by Frans M. Kaspersen; Fons A. M. Van Rooij; Eric G. M. Sperling; Joop H. Wieringa
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- French
- Weight
- 597 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
โฆ Synopsis
The syntheses of 1,2,3,4,10,1412-hexahydro-2-methylpyrazino[2,l-a]pyrido [2,3-c][2]benzazepine (Org 3770) labelled with 'H (and 'H), "C and I4C are described. Tritiated Org 3770 was prepared either by exchange under alkaline conditions with tritiated water or catalytic reductive dehalogenation of a chloro analogue with 'H2. "C-labelled material was obtained in a seven-step synthesis starting from ' C-labelled benzene whereas ' C-Org 3770 was prepared in a three-step synthesis starting with 14C0,. All labelled compounds were analyzed by TLC, HPLC, MS and NMR.
๐ SIMILAR VOLUMES
## Abstract The preparation of [^3^H]Sch 727965 from unlabeled compound and tritiated water was base catalyzed. Diethyl [^13^C~3~]malonate was used to prepare [^13^C~3~]Sch 727965 in five steps in 21.8% overall yield. In a similar manner, [^14^C]Sch 727965 was prepared in five steps from diethyl [2
## Abstract ^3^HโSch 58235 was prepared at a specific activity of 29.1 Ci/mmol by Ir(COD)(Cy~3~P)PyPF~6~ catalysed exchange with tritium gas. ^14^CโSch 58235 was prepared in three steps from __p__โhydroxy[ringโUโ^14^C]benzaldehyde with an overall radiochemical yield of 21%. ^13^C~6~โSch 58235 was s