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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1630589Generated: November 3, 2026

HCID 68283889, compound → 5-[2-(2,8-Dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-1-hydroxy-1-methyl-ethyl]-pyridin-2-ol

https://huagongshe.com/reaction/1630589

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 68283889HCID 68283889—
SolventHydrochloric AcidHCID 313—
Product5-[2-(2,8-Dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-1-hydroxy-1-methyl-ethyl]-pyridin-2-olHCID 178422509—

Reaction Steps

A solution of 1-(2,8-dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-2-(6-methoxy-pyridin-3-yl)-propan-2-ol (100 mg, 0.27 mmol) in 3N HCl (4 mL) was stirred at 100° C. for 4 h. The reaction mixture was concentrated under reduced pressure and the residue was purified by reverse phase HPLC to yield 5-[2-(2,8-dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-1-hydroxy-1-methyl-ethyl]-pyridin-2-ol. 1H NMR (CD3OD, freebase) δ (ppm): 7.58 (d, 1H), 7.2 (s, 1H), 7.1 (s, 1H), 7.0 (d, 1H), 6.8 (d, 1H), 6.4 (d, 1H), 4.6 (bs, 1H), 4.17 (m, 2H), 4.0 (m, 2H), 3.1-3.25 (m, 2H), 2.97 (m, 1H), 2.8 (s, 3H), 2.4 (s, 3H), 1.6 (s, 3H). Separation by chiral HPLC provides enantiomers II-80a-b.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791132B2
Source datasetuspto-grants-2014_07
ORD IDord-e6a9ded3f7ce43ba93cf035ddb29469b
Source noteuspto-grants-2014_07