| abstract |
The present invention provides a compound of formula (2) from an optically active ( 2S , 3R ) -4-cyanobutane-1,2,3-triol derivative represented by formula (1), a method for preparing the compound, and a compound of formula (1) Relates to a method of making:n n n n n n n n n n n n n n n n n In the above formulan n n R and R 'each independently represent a hydrogen or a hydroxy protecting group. |