Nitrogen-containing heterocyclic compound having MYT1 inhibitory activity

Abstract

Provided is a compound having new MYT1 inhibitory activity or a salt thereof, or a solvate thereof. A compound represented by the formula (1): wherein R4 is selected from the group consisting of optionally substituted C6-C10 aryl (R4A), optionally substituted 4- to 10-membered heterocyclyl, and optionally substituted 5- to 10-membered heteroaryl (R4HA); R5 and R6, together with the atoms to which they are attached, form an optionally substituted Ring D; Ring D is selected from the group consisting of a 3- to 10-membered monocyclic cycloaliphatic ring, a benzene ring, a 3- to 12-membered monocyclic heterocyclic ring, and a 5- to 6-membered monocyclic aromatic heterocyclic ring (DHA); and any two adjacent substituents on Ring D, together with the atoms to which they are attached, may form optionally substituted Ring E, or a salt thereof, or a solvate thereof.

Dependencies are inferred from the claim text.