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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 560185Generated: October 29, 2026

Hydrochloric Acid → HCID 66999955, compound

https://huagongshe.com/reaction/560185

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 66999450HCID 66999450—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66999955HCID 6699995593.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

5-Phenyl-3-[3-benzyloxycarbonyl-propyl]-1H-indole-2-carboxylic acid ethyl ester (40 mg, 0.088 mmol, 1.0 equiv) was dissolved in 4 mL of a 1:1 mixture of THF and ethanol. To this homogenous solution, KOH in water was added and the reaction mixture was stirred at 50° C. for 6 h. At this point TLC (100% EtOAc) showed only baseline material. The reaction was poured into 20 mL of 1 M HCl and was extracted 2×25 mL of EtOAc. The pooled organic fractions were dried (Na2SO4), filtered, and evaporated to yield 5-phenyl-3-[3-benzyloxycarbonyl-propyl]-1H-indole-2-carboxylic acid (34 mg, 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063094B2
Source datasetuspto-grants-2011_11
ORD IDord-51913bfe186b4138b8442c3804811b37
Source noteuspto-grants-2011_11