Biosynthesis of the Verrucarins and Roridins. Part 4. The mode of incorporation of (3R)-[(5R)-5-3H]-mevalonate into verrucarol. Evidence for the identity of the C(11)-hydrogen atom of the trichothecane skeleton with the (5R)-hydrogen atom of (3R)-mevalonic acid
✍ Scribed by Beat Müller; Christoph Tamm
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- German
- Weight
- 392 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
Incorporation of (3R)‐[(5R)‐5‐^3^H]‐mevalonate into verrucarin followed by hydrolyses to verrucarol (2) and transformation of the latter to the spirolactol 5 and the spirolactone 6 successively, demonstrate the identity of the C(11)‐hydrogen of the trichothecane skeleton with the 5‐‘pro‐R’ hydrogen atom of (3R)‐mevalonate.
📜 SIMILAR VOLUMES
Reaction of A 2 CO 3 (A = K, Rb) with Sn and Se in an H 2 O/CH 3 OH mixture at 115±130 °C affords the isotypic selenidostannates(IV) A 6 Sn 4 Se 11 ´x H 2 O (A = K, x = 8) 1 and 2 whose discrete [Sn 4 Se 11 ] 6± anions each contain two corner-bridged ditetrahedral [Sn 2 Se 6 ] 4± species. Similar re