Solid phase synthesis of highly substituted 2,4-dioxopiperidines
β Scribed by Wenying Chai; William V. Murray
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- French
- Weight
- 231 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
A convenient solid phase synthesis of (E)-N-substituted-acetyl-N-(2-methoxycarbonyl-3-(aryl)-prop-2enyl)amino acids and the condensation of their esters to highly substituted 2,4-dioxopiperidines are described.
π SIMILAR VOLUMES
Solid-Phase Synthesis of Chiral 3-Substituted Quinazoline-2,4-diones. -A series of N-urethane precursors such as (I) or (III) are prepared and subjected to cyclization in the presence of base (DBU, NaOH or NEt3). The desired quinazolines are obtained in good to excellent yield without racemization.
A versatile protocol for solid phase synthesis of highly substituted thiophene derivatives and their activity against the PDE-4 enzyme are discussed. This protocol employs 3-hydroxymethylthiophene-2-boronic acid (5) as the scaffold and sequential palladium catalyzed cross-coupling reactions as the C
A solid-phase synthesis of benzimidazoles, substituted on the aromatic ring by a variety of groups or atoms, is described. Intermediate 3, derived from the acylation of a resin-bound secondary amine with Fmoc-glycine, was elaborated via nucleophilic displacement with substituted o-halonitroarenes to