A Total Synthesis of Aphidicolin: Stereospecific Synthesis of (±)-3α, 18-Dihydoxy-17-Noraphidicolan-16-one
✍ Scribed by Rinaldo Marini Bettolo; Pietro Tagliatesta; Alessandro Lupi; Doriano Bravetti
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- German
- Weight
- 423 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
A simple, efficient, and stereospecific total synthesis of (±)‐3α, 18‐dihydroxy‐17‐noraphidicolan‐16‐one (2), by solvolytic rearrangement of the endo‐bicyclo‐[2.2.2]oct‐5‐en‐2‐yl methanesulfonate 16, is described. Since aphidicolin (1) has already been obtained from 2, the preparation of the latter formally constitutes a new total synthesis of 1.
📜 SIMILAR VOLUMES
## Abstract A method has been described for the synthesis of tritiated [7‐^3^H]‐3β,16β‐dihydroxy‐5‐androsten‐17‐one of high specific activity starting from [7‐^3^H]‐5‐androsten‐17‐one. The identity of the radioactive steroid was established by thin layer chromato‐graphy, gas chromatography and gas
## Abstract A very simple regio‐ and stereospecific synthesis of 17‐noraphidicolan‐16‐one and 17‐norstemodan‐16‐one by solvolytic rearrangement of suitable bicyclo[2.2.2]‐‐octenyl methanesulfonate is described.
THE total synthesis of several steroids (1.2) has previously been reported from this laboratory. In this communication a straightforward total synthesis of rec. 5a-preQnan-3~-ol-20-one (XIIIa) is reported. '3 All melting points were measured on Kofler block and corrected. '
## Abstract For Abstract see ChemInform Abstract in Full Text.