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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 715182Generated: October 30, 2026

Water → HCID 67378755, compound

https://huagongshe.com/reaction/715182

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant1H-Indazol-4-ylboronic acid--hydrogen chloride (1/1)HCID 46738007—
Reactant5-(3-bromophenyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indoleHCID 67378524—
CatalystHCID 178418397HCID 178418397—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 67378755HCID 67378755—

Reaction Conditions

Temperature90 °C

Reaction Steps

To a de-aerated solution of 5-(3-bromophenyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (100 mg, 0.281 mmol), indazole-4-boronic acid hydrochloride (111 mg, 0.559 mmol) and K2CO3 (116 mg, 0.845 mmol) in DME (4 mL)-water (2 mL) was added Pd(PPh3)4 (16 mg, 0.013 mmol). The reaction mixture was stirred at 90° C. for 45 min. The reaction mixture was concentrated under reduced pressure. The residue was dissolved in EtOAc (50 mL) and washed with water (20 mL). The organic layer was dried over anhydrous sodium sulfate, concentrated under reduced pressure to obtain crude, which was purified by reverse phase HPLC to yield 5-(3-(1H-indazol-4-yl)phenyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole. 1H NMR (TFA salt, CD3OD) d (ppm): 8.18 (s, 1H), 7.82 (d, 1H), 7.78 (t, 1H), 7.7 (s, 1H), 7.6 (d, 1H), 7.5 (m, 2H), 7.34 (m, 2H), 7.21 (d, 1H), 7.1 (d, 1H), 4.7 (d, 1H), 4.4 (d, 1H), 3.8 (m, 1H), 3.6 (m, 1H), 3.04-3.18 (m, 5H), 2.4 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09187471B2
Source datasetuspto-grants-2015_11
ORD IDord-dfe973cead594a05bacdf21bbef69bfd
Source noteuspto-grants-2015_11