Synthesis of the branched nine-carbon unit of the type A streptogramins and other antibiotics
โ Scribed by Kazmierczak, Franciszek; Helquist, Paul
- Book ID
- 121315327
- Publisher
- American Chemical Society
- Year
- 1989
- Tongue
- English
- Weight
- 756 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
is thought to occur via the anisotropic alignment of graphene layers; these graphite layers lead to structures that have different shapes (e.g., straight, helical, branched) developed by the growth from the different crystal faces of the catalyst particle. [ 1 , 2 , 13 , 14 ] This diversity of morph
Trioxo ester 15 was prepared by attachment of two vicinal C-16 regioselectively in one operation. Deprotection of 16 afforded the antibiotic G-2A (1) and decarboxylation of 1 4 and C-6 ketide side chains on the anthraquinone core (6b). Mild base treatment of 15 initiated successive aldol lead to G-2