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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040540Generated: October 31, 2026

Pyrrolidine → Ethyl 2-(7-(4-(Pyrrolidin-1-yl)-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate

https://huagongshe.com/reaction/2040540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant2-(Di-tert-butylphosphino)biphenylHCID 2734215—
ReactantSodium t-butoxideHCID 23676156—
ReactantEthyl 2-(7-(4-Chloro-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetateHCID 67211075—
Catalystpalladium(II) acetateHCID 167845—
Solvent1,4-DioxaneHCID 31275—
ProductEthyl 2-(7-(4-(Pyrrolidin-1-yl)-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetateHCID 6722017332.4%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of ethyl 2-(7-(4-chloro-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate (50.9 mg, 0.113 mmol), pyrrolidine (0.047 mL, 0.563 mmol), diacetoxypalladium (1.264 mg, 5.63 μmol), biphenyl-2-yl-di-tert-butylphosphine (3.36 mg, 11.0 μmol) and sodium 2-methylpropan-2-olate (27.1 mg, 0.282 mmol) in dioxane (3 mL) was heated under microwave irradiation at 120° C. for 2 h. The mixture was purified by HPLC. Fractions containing product were basified with 1 M NaHCO3 and concentrated. The residue was extracted with 0.5 M citric acid and CH2Cl2. The organics were dried over MgSO4, filtered, and concentrated to give the title compound as a white solid (17.8 mg). LCMS m/z=487.4 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580841B2
Source datasetuspto-grants-2013_11
ORD IDord-1a5b6ce9e7444b59baec58a60ffb9701
Source noteuspto-grants-2013_11