## Abstract The 2‐carbon units, glycine and glyoxylate are combined by a mild reaction via the copper chelate of glycine. The resulting β‐hydroxy aspartic acid is converted to DL‐malic acid by means of hydroxylamine 0‐sulfonic acid. The overall yields are in the range of 35–50% in submillimolar pre
A practical approach to the synthesis of 14C-labeled amino acid and simple peptide
✍ Scribed by I. Victor Ekhato; Che C. Huang
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- French
- Weight
- 394 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A convenient method for the synthesis of phenylmethyl N‐methyl (carboxy‐^14^C) glycine hydrochloride (Z) is described. It involves the carboxylation of transmetalated organostannane compound 4 which itself is accessible by established procedure. Success in preparing the labelled amino acid Z enabled us to synthesize target N‐glycyl‐N‐methyl(carboxy‐^14^C) glycine (10) by conventional coupling protocol.
📜 SIMILAR VOLUMES
## Abstract Condensation of aromatic carboxaldehydes with [2‐^14^C]‐__malonic acid under Knoevenagel conditions provides corresponding β‐aryl substituted__ [α‐^14^C]‐acrylic acids. The reaction is applicable to both aromatic and heteroaromatic aldehydes under controlled reaction conditions leading
## Abstract Efficient carbon‐14 labeling of four potent and selective DP1 antagonists is reported. The synthetic sequence began with α‐hydroxylation, reduction of an ester, followed by oxidative diol cleavage and aldehyde reduction. The resulting alcohol **4** was converted to a mesylate then nucle