The present invention discloses a synthesis process for a key intermediate of
fluvastatin. The process comprises a simple
condensation reaction similar to an
aldol condensation reaction, followed by reduction of a nitro derivative and a
double bond reaction to obtain an indole ring, and finally, introduction of an
isopropyl group, thereby obtaining the key intermediate compound V of
fluvastatin. The present invention has the following beneficial effects: the raw materials used in each step of the present invention are readily available and relatively low in price, which can effectively reduce production costs, save production costs, and bring considerable
economic benefits; the reagents used in the present invention are less hazardous, generate less waste, and are simple to
handle, with less harm, which is beneficial to
environmental protection,
energy conservation, and emission reduction, conforming to the concept of
green chemistry; the reaction
route of the present invention is simple to operate, has a high product yield, generates few by-products, has high product purity, good
atom economy, and is easy to separate, making it suitable for
industrial scale-up production.