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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1013309Generated: November 1, 2026

Hydrochloric Acid → 3-Cyano-4-(2-methylphenyl)-1-(3-(1-naphthyloxy)propyl)-1h-indole-2-carboxylic acid

https://huagongshe.com/reaction/1013309

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantMethyl 3-cyano-1-(3-(naphthalen-1-yloxy)propyl)-4-o-tolyl-1h-indole-2-carboxylateHCID 67315489—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product3-Cyano-4-(2-methylphenyl)-1-(3-(1-naphthyloxy)propyl)-1h-indole-2-carboxylic acidHCID 67315411—

Reaction Steps

A mixture of EXAMPLE 133A (16 mg) and sodium hydroxide (200 μl) in tetrahydrofuran (0.5 ml) and methanol (0.5 ml) was stirred overnight, neutralized with diluted HCl, and concentrated. The residue was purified by RPHPLC to provide the desired product. 1H NMR (500 MHz, dimethyl sulfoxide-d6) δ 14.24 (s, 1H), 8.14 (d, J=8.54 Hz, 1H), 7.86 (dd, J=7.48, 5.65 Hz, 2H), 7.35-7.61 (m, 5H), 7.18-7.36 (m, 3H), 7.12 (d, J=7.32 Hz, 1H), 7.06 (d, J=7.02 Hz, 1H), 6.89 (d, J=7.32 Hz, 1H), 4.77-5.18 (m, 2H), 4.24 (t, J=5.03 Hz, 2H), 2.30-2.47 (m, 2H), 1.99 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981888B2
Source datasetuspto-grants-2011_07
ORD IDord-d0295556b8ac46bcb39b987525f61475
Source noteuspto-grants-2011_07