Abstract
The first enantioselective synthesis of the antihistamine agent clemastine, as its (S,S)-stereoisomer, has been achieved by ether formation between a proline-derived chloroethylpyrrolidine and an enantiomerically enriched tertiary alcohol. The tertiary alcohol was formed from the carbamate derivative of α-methyl-p-chlorobenzyl alcohol by invertive aryl migration on lithiation. The (S,S)-stereochemistry of the product confirms the invertive nature of the rearrangement. © 2010 American Chemical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 2222-2225 |
| Number of pages | 3 |
| Journal | Organic Letters |
| Volume | 12 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 21 May 2010 |