N-{(1S,2R,3S,4R)-4-[2-(4-Amino-imidazol-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-hydroxy-acetamide → (2S,3S,4R,5R)-5-[2-(4-Amino-imidazol-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-3,4-dihydroxy-tetrahydro-furan-2-carboxylic acid ethylamide

Participants

Role	Name	HCID	Charge
Reactant	N-{(1S,2R,3S,4R)-4-[2-(4-Amino-imidazol-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-hydroxy-acetamide	HCID 66630069	—
Reactant	Acetic acid {(1S,2R,3S,4R)-4-[2-chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentylcarbamoyl}-methyl ester	HCID 86637573	—
Product	(2S,3S,4R,5R)-5-[2-(4-Amino-imidazol-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-3,4-dihydroxy-tetrahydro-furan-2-carboxylic acid ethylamide	HCID 66630806	—

Reaction Steps

The title compound is prepared analogously to N-{(1S,2R,3S,4R)-4-[2-(4-amino-imidazol-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-hydroxy-acetamide (Intermediate ZU), by substituting (2S,3S,4R,5R)-5-[2-chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-3,4-dihydroxy-tetrahydro-furan-2-carboxylic acid ethylamide (Intermediate ZY) for acetic acid {(1S,2R,3S,4R)-4-[2-chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentylcarbamoyl}-methyl ester (Intermediate Q1) in step ZU1.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08318750B2
Source dataset	uspto-grants-2012_11
ORD ID	ord-ea30c610111241fe963b8615c3fa4fea
Source note	uspto-grants-2012_11