COMPOUND HAVING HETERO RING SKELETON, AND PROCESS FOR PRODUCING OPTICALLY ACTIVE COMPOUND USING THE AFOREMENTIONED COMPOUND AS ASYMMETRIC CATALYST

摘要

The invention provides a compound having a heterocyclic skeleton of formula (I):; ;wherein the substituents are as defined in the specification, as well as a tautomer thereof or a salt thereof. The invention also provides asymmetric synthesis methods involving the use of such a compound, tautomer thereof, or salt thereof, as a catalyst.