1-methyl-2,3-dihydro-1H-1,3-benzodiazol-2-one → Methyl 6-[2,3-dihydro-3-methyl-2-oxo-1H-benzimidazol-1-ylmethyl]-1,2,3,4-tetrahydro-3-methyl-1-(2-methylpropyl)-2,4-dioxo-thieno[2,3-d]pyrimidine-5-carboxylate

Participants

Role	Name	HCID	Charge
Reactant	1-methyl-2,3-dihydro-1H-1,3-benzodiazol-2-one	HCID 590540	—
Reactant	Methyl 6-bromomethyl-1-isobutyl-3-methyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-5-carboxylate	HCID 16102871	—
Product	Methyl 6-[2,3-dihydro-3-methyl-2-oxo-1H-benzimidazol-1-ylmethyl]-1,2,3,4-tetrahydro-3-methyl-1-(2-methylpropyl)-2,4-dioxo-thieno[2,3-d]pyrimidine-5-carboxylate	HCID 69197857	—

The subtitle compound was prepared by the method of example 1 step c) using the product of example 1 step b) and N-methylbenzimidazolone.