METHOD FOR PRODUCING PYRIDAZINONE DERIVATIVE AND ITS INTERMEDIATE

摘要

PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing an N-(aminoalkyl)morpholine useful as an intermediate for medicines with a short step. SOLUTION: The N-(aminoalkyl)morpholine (IV) is produced in one step by reacting a compound expressed by general formula (II) with a compound expressed by general formula (III) (A1and A2are each independently a halogen; and n is an integer of 2-8). The compound (IV) is an intermediate for a pyridazinone derivative useful as medicines. COPYRIGHT: (C)2005,JPO&NCIPI