Ammonia → 1-[6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid amide

Participants

Role	Name	HCID	Charge
Reactant	Ammonia	HCID 222	—
Reactant	Regadenoson	HCID 219024	—
Product	1-[6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid amide	HCID 9864445	—

Compound 20 was prepared in a manner similar to that of compound 16 using ammonia instead of methylamine, MS 377.25 (M+1).