| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (2R)-2-methyl-3-(phenylmethoxymethoxy)propanal | 73991-91-0 | C12H16O3 | 208.257 |
| —— | (R)-(+)-3-<(benzyloxy)methoxy>-2-methylpropanol | 102518-03-6 | C12H18O3 | 210.273 |
| —— | (2S)-3-(benzyloxy)methoxy-2-methyl-1-propanol | 201011-92-9 | C12H18O3 | 210.273 |
| —— | (2R,3S)-1-Benzyloxymethyloxy-2-methylbutan-3-ol | 101470-81-9 | C13H20O3 | 224.3 |
The formal total synthesis of the marine metabolite (+)-calyculin A is reported. The key steps involve (i) the use of Brown allylboration chemistry to control the relative and absolute stereochemistry of homoallylic alcohol arrays, thus setting eight of the desired stereocenters; (ii) Stille coupling methodology in the construction of the cyano tetraene unit of the natural product; and (iii) a modified CornforthMeyers approach to the synthesis of the oxazole fragment.Key words: calyculin, marine natural product, phosphatase inhibitor, total synthesis, palladium catalyzed coupling reactions, allylboration reactions, aldol reactions, spiroketal, CornforthMeyers oxazole reaction.