Piperazin-2-one → (1-{4-[4-oxo-8-(3-oxo-piperazin-1-yl)-2-phenyl-4H-chromen-3-yl]-phenyl}-cyclobutyl)-carbamic acid tert-butyl ester

Participants

Role	Name	HCID	Charge
Reactant	Piperazin-2-one	HCID 231360	—
Reactant	{1-[4-(8-Bromo-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester	HCID 67067700	—
Reactant	{1-[4-(8-Morpholin-4-yl-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester	HCID 67067829	—
Product	(1-{4-[4-oxo-8-(3-oxo-piperazin-1-yl)-2-phenyl-4H-chromen-3-yl]-phenyl}-cyclobutyl)-carbamic acid tert-butyl ester	HCID 67067777	64%

Reaction Steps

Following the procedure of {1-[4-(8-morpholin-4-yl-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester, {1-[4-(8-bromo-4-oxo-2-phenyl-4H-chromen-3-yl)-phenyl]-cyclobutyl}-carbamic acid tert-butyl ester was reacted with 2-oxopiperazine to give the title compound as a white solid (35 mg, 64%). LCMS (Method G): RT=3.45 min, [M+H]+=566.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08546376B2
Source dataset	uspto-grants-2013_10
ORD ID	ord-0e54e1d35cf64f9a84cbc48f4b6c1a69
Source note	uspto-grants-2013_10