## Abstract Total syntheses of allocolchicines **4** and **5**, with the ester functionality in the Cβring at the C10 or C11 positions, is reported. An asymmetric synthesis of (7__S__)βallocolchicine **5** is also described. The main features included the elaboration of a common intermediate, the A
Synthesis of Seven- and Eight-Membered Carbasugar Analogues via Ring-Closing Metathesis and Their Inhibitory Activities Toward Glycosidases.
β Scribed by Yves Bleriot; Andre Giroult; Jean-Maurice Mallet; Eliazar Rodriguez; Pierre Vogel; Pierre Sinay
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 206 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
Conformational Bias by a Removable Substituent. Synthesis of Eight-Membered Cyclic Ethers via Ring-Closing Metathesis. -Ru-catalyzed ring-closing metathesis of acyclic Ξ±-(alkoxyalkyl)-stannylsubstituted dienes leads to the synthesis of six-, seven-, and eight-membered Ξ±-trialkylstannyl-substituted