DERIVATIVES OF PYRAN

摘要

2073239 9110673 PCTABS00006 The invention provides a process for the preparation of a compound of formula (I) wherein R1 represents alkyl and R2 represents an acid-labile protecting group, by the reduction of a compound of formula (II) wherein R1 and R2 are as hereinbefore defined and R3 represents a suitable leaving group. Compounds of formula (I) are useful in the synthesis of mevalonic acid derivatives.