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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2067147Generated: October 30, 2026

2-Ethoxy-1-((2'-(1-(triphenylmethyl)-1H-tetrazol-5-yl)(1,1'-biphenyl)-4-yl)methyl)-1H-benzimidazole-7-carboxylic acid → (1R)-1-({[(1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentyl]carbonyl}oxy)ethyl N-pentanoyl-N-{[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-L-valinate

https://huagongshe.com/reaction/2067147

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Ethoxy-1-((2'-(1-(triphenylmethyl)-1H-tetrazol-5-yl)(1,1'-biphenyl)-4-yl)methyl)-1H-benzimidazole-7-carboxylic acidHCID 10312563—
Reactant(2S)-3-methyl-2-[pentanoyl-[[4-[2-(1-trityltetrazol-5-yl)phenyl]phenyl]methyl]amino]butanoic acidHCID 23653943—
Reactant1-chloroethyl (1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentanecarboxylateHCID 59364092—
Reactant(1S)-1-chloroethyl (1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentanecarboxylateHCID 86642385—
Product(1R)-1-({[(1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentyl]carbonyl}oxy)ethyl N-pentanoyl-N-{[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-L-valinateHCID 178447307—

Reaction Steps

The title compound was prepared by following the procedure for example 2, except that the reagent 2-ethoxy-1-{[2′-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-1H-benzimidazole-7-carboxylic acid was replaced by N-pentanoyl-N-{[2′-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-L-valine and 1-chloroethyl (1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentanecarboxylate (intermediate 2) was replaced by (1S)-1-chloroethyl (1R,3S,4S)-3-methoxy-4-(nitrooxy)cyclopentanecarboxylate (intermediate 3). LC-MS: m/z 667.3 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08293777B2
Source datasetuspto-grants-2012_10
ORD IDord-96bdba94e7a04492ae0f5fa45771556b
Source noteuspto-grants-2012_10