Use of a Lithiolactone in the Enantioselective Constructions of A/C seco-B and of A/B seco-C proTaxol Systems
β Scribed by Gilbert Stork; Takayuki Doi; Longbin Liu
- Book ID
- 104258095
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 502 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
We show that an unusual Iithiolactone system is a useful starting point for the constructionof variousintermediatesto the taxolstructure. Q 1997 Elsevier Science Ltd.
π SIMILAR VOLUMES
A&mrcc The first consrmctionof theA,B,C-ringsystemhavingall of the naturataubstituenta in ciguatoxin wasachievedfromB-glucose. O 1997EkevierScienceLtd. Ciguatoxitt 1 was isolated as the principal toxin causing ciguatera from moray eel Garnno thorax javanicur.The structureof 1 determined by Yasumoto
The asymmetric syntheses of two anticancer natural products, candenatenins B and C, are described, leading to a revision of the originally assigned stereochemistries. The syntheses follow a Diels-Alder/ retro-Diels Alder strategy using a chiral anthracene auxiliary to access both targets with 90% ee
## Abstract Seven rings A,Bβ__seco__ limonoids 1β7 were isolated from the EtOH extract of the seed of __Aphanamixis polystachya__. Their structures were identified as rohitukaβ7 (1), dregeanaβ1 (2), rohitukaβ15 (3), TrβB (4), rohitukaβ3 (5), rohitukaβ5 (6), and rohitukaβ14 (7) by MS and NMR spectro