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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 387254Generated: October 30, 2026

Methanol → 5-bromo-3-(1,1-dioxidotetrahydro-3-thienyl)-1H-indole-7-carboxylic acid

https://huagongshe.com/reaction/387254

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantLithium HydroxideHCID 3939—
Reactant1-(1,1-dimethylethyl) 7-methyl 5-bromo-3-(1,1-dioxidotetrahydro-3-thienyl)-1H-indole-1,7-dicarboxylateHCID 59332561—
SolventWaterHCID 962—
Product5-bromo-3-(1,1-dioxidotetrahydro-3-thienyl)-1H-indole-7-carboxylic acidHCID 5933271530.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a microwave vial was added 1-(1,1-dimethylethyl) 7-methyl 5-bromo-3-(1,1-dioxidotetrahydro-3-thienyl)-1H-indole-1,7-dicarboxylate (432 mg, 0.91 mmol), LiOH (109 mg, 4.5 mmol), MeOH (6 mL) and H2O (3 mL). The mixture was heated to 80° C. for 30 min in the microwave. The reaction mixture was then purified via Gilson HPLC (TFA buffer) to give 99 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08372875B2
Source datasetuspto-grants-2013_02
ORD IDord-dac55c1cf02a4cb9a569f8f9ba668210
Source noteuspto-grants-2013_02