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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1081505Generated: November 3, 2026

Diisopropylethylamine → 3-Cyclohexyl-5-ethoxy-1,3-dihydro-1-[4-[N-(indan-2-yl)carbamoyl]-2-methoxybenzenesulfonyl]-2H-benzimidazol-2-one

https://huagongshe.com/reaction/1081505

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2-Aminoindan hydrochlorideHCID 122764—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
Reactant5-Ethoxy-1,3-dihydro-1-(2-methoxy-4-carboxybenzenesulfonyl)-3-cyclohexyl-2H-benzimidazol-2-oneHCID 15229042—
SolventDichloromethaneHCID 6344—
Product3-Cyclohexyl-5-ethoxy-1,3-dihydro-1-[4-[N-(indan-2-yl)carbamoyl]-2-methoxybenzenesulfonyl]-2H-benzimidazol-2-oneHCID 2336424470.4%

Reaction Steps

This compound is prepared by the procedure described in EXAMPLE 100 starting from 0.8 g of the compound obtained in EXAMPLE 13, 0.35 g of 2-aminoindane hydrochloride, 0.8 g of BOP, 2 ml of DIPEA and 20 ml of DCM. It is chromatographed on silica using a DCM/AcOEt mixture (96/4; v/v) as the eluent to give 0.7 g of the expected product in the form of white crystals. M.p.=160° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05585394
Source datasetuspto-grants-1996_12
ORD IDord-730b8f9a323349ec86fba12e3ce17094
Source noteuspto-grants-1996_12