4. SUP une nouvelle synthese de l'alcool anisique (RBponse z i &I. R. Quelet) par Alfred Ofner. (18. XI. 36). Nous av-ons publi6 en 1935l) une note sur une nouvelle synthhse tle l'ac6tate d'anisyle et de l'alcool anisique h partir de l'anisol. Dans une publication rBcente2) R. QueZet a contest6 l
Une nouvelle synthèse de l'oxytocine
✍ Scribed by R. A. Boissonnas; St. Guttmann; P.-A. Jaquenoud; J.-P. Waller; Prof. E. Cherbuliez; Prof. A. Stoll
- Publisher
- John Wiley and Sons
- Year
- 1955
- Tongue
- German
- Weight
- 784 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new synthesis of oxytocin is described. N‐CBO‐L‐glutaminyl‐L‐asparaginyl‐S‐benzyl‐L‐cysteinyl‐azide is reacted with L‐prolyl‐L‐leucyl‐glycinamide to give N‐CBO‐L‐ glutaminyl‐L‐asparaginyl‐S‐benzyl‐L‐cysteinyl‐L‐prolyl‐L‐leucyl‐glycinamide. After removal of the CBO group by HBr in acetic acid this hexapeptide is condensed with N‐CBO‐S‐benzyl‐L‐cysteinyl‐L‐tyrosyl‐L‐isoleucyl‐azide to give the nonapeptide N‐CBO‐S‐benzyl‐L‐cysteinyl‐L‐tyrosyl‐L‐ isoleucyl‐L‐glutaminyl‐L‐asparaginyl‐S‐benzyl‐L‐cysteinyl‐L‐prolyl‐L‐leucyl‐glycinamide already obtained by du Vigneaud and coworkers through another route. Reduction with sodium in liquid ammonia and reoxydation gives biologically active material.
📜 SIMILAR VOLUMES
## Abstract N‐CBO‐L‐Glutaminyl‐L‐asparaginyl‐S‐benzyl‐L‐cysteinyl‐azide has been condensed with L‐prolyl‐ϵ‐N‐tosyl‐L‐lysyl‐glycinamide, giving N‐CBO‐L‐glutaminyl L‐asparaginyl‐S‐benzyl‐L‐cysteinyl‐L‐prolylϵ‐N‐tosyl‐L‐lysyl‐glycinamide, which after spliting of the CBO‐protecting group has been conde
## Abstract The syntheses of four analogues of oxytocine are described: one with a phenylalanyl residue replacing the isoleucyl residue, one with a leucyl residue replacing the isoleucyl residue, one with a valyl residue replacing the isoleucyl residue, and one with a glutaminyl residue replacing t
En soumettant la mkthylkne-asparagine (I) a la reaction de Hofmann (traitement a l'hypobromite) dans le but de la transformer en un derive de l'acide diamino-propionique, nous avons obtenu un acide halogene C,H,03N,Br. La constitution de ce corps pouvait 6tre interpretke de deux manihres. Les produ
## Abstract En ajoutant à un acide aminé ou peptide N‐acylé dans un solvant organique une amine tertiaire (tri‐n‐butylamine), puis du chloroformiate ( = chlorocarbonate = chlorométhanoate) d'éthyle (ou de méthyle) en quantités équimoléculaires, on obtient immédiatement une solution contenant des an
## Abstract An improved synthesis of Bradykinin is described. N‐CBO‐G‐tosyl‐L‐arginyl‐L‐prolyl‐L‐prolyl‐glycine __p__‐nitrophenyl ester and L‐phenylalanyl‐L‐seryl‐L‐prolyl‐L‐phenylalanyl‐G‐tosyl‐L‐arginine are prepared and condensed together to N‐CBO‐G‐tosyl‐L‐arginyl‐L‐prolyl‐L‐prolyl‐glycyl‐L‐phe