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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 743909Generated: October 29, 2026

Dicyclohexylcarbodiimide → L-Proline, 4,4-dimethoxy-

https://huagongshe.com/reaction/743909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant4,4-Dimethoxy-L-proline methyl esterHCID 11137904—
Reactant2-[5-[2-(2H-tetrazol-5-yl)phenyl]benzimidazol-1-yl]octanoic acidHCID 15838180—
ReactantHCID 178418300HCID 178418300—
ProductL-Proline, 4,4-dimethoxy-HCID 12821175—

Reaction Steps

4,4-Dimethoxy-L-proline methyl ester (1.35 mmoles, 0.257 g) and 2-[5-[2-(2H-tetrazol-5-yl)phenyl]-1H-benzimidazol-1-yl]octanoic acid (1.23 mmoles, 0.5 g) were reacted in the presence of hydroxybenzotriazole and dicyclohexylcarbodiimide as in Example 15 to yield 0.220 g of 1-[1-oxo-2-[5-2-(2H-tetrazol-5-yl)phenyl]-1H-benzimidazol-1-yl]octyl]-4,4-dimethoxy-L-proline. (MS).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05556981
Source datasetuspto-grants-1996_09
ORD IDord-3587088e8ba044acad31b68e3d838768
Source noteuspto-grants-1996_09