Synthesis of dl-[2-13C]leucine and it use in the preparation of [3-dl-[2-13C]leucine]oxytocin and [8-dl-[2-13C]leucine]oxytocin: Preparative separation of diastereoisomeric peptides by partition chromatography and high pressure liquid chromatography

Synthesis of S-benzyl-DL-[1-13C]cysteine

Synthesis of S-benzyl-DL-[1-13C]cysteine and its incorporation into oxytocin and [8-arginlne]vasopressin and related compounds by total synthesis. Separation of diastekeoisomers by partition chromatography and HPLC

✍ Victor J. Hruby; V. Viswanatha; Young C. S. Yang 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 French ⚖ 501 KB

## Abstract S‐Benzyl‐DL‐[1‐^13^C]cysteine was prepared from Na^13^CN by a three step synthesis and converted to the t‐butyloxycarbonyl derivative which was suitable for use in peptide synthesis. This compound was incorporated into the 1 and 6 positions of a variety of oxytocin and [8‐arginine]vasop