2-Oxoimidazolidine-1-carbonyl chloride → cis-4-(3-Chloro-4-methoxy-phenyl)-2-{1-[1-(2-oxo-imidazolidin-1-yl)-methanoyl]-piperidin-4-yl}-4a,5,8,8a-tetrahydro-2H-phthalazin-1-one

Participants

Role	Name	HCID	Charge
Reactant	2-Oxoimidazolidine-1-carbonyl chloride	HCID 83241	—
Reactant	(cis)-4-(3-Chloro-4-methoxy-phenyl)-2-[1-(1-morpholin-4-yl-methanoyl)-piperidin-4-yl]-4a,5,8,8a-tetrahydro-2H-phthalazin-1-one	HCID 69490073	—
Product	cis-4-(3-Chloro-4-methoxy-phenyl)-2-{1-[1-(2-oxo-imidazolidin-1-yl)-methanoyl]-piperidin-4-yl}-4a,5,8,8a-tetrahydro-2H-phthalazin-1-one	HCID 69487067	—

Prepared from intermediate product A1 and 2-oxo-imidazolidine-1-carbonyl chloride as described for compound 1. M. p. 216–218° C.