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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 33345Generated: October 25, 2026

Pyrrolidine → Indol-6-one

https://huagongshe.com/reaction/33345

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant4-Formylphenylboronic AcidHCID 591073—
Reactant2-Phenyl-3,10-diazatricyclo[6.4.1.04,13]trideca-1,4,6,8(13)-tetraen-9-oneHCID 10220882—
Reactant4-(8-Fluoro-3,4,5,6-tetrahydro-6-oxo-1H-pyrrolo(4,3,2-ef)(2)benzazepin-2-yl)benzaldehydeHCID 22266721—
Reactant2-Bromo-8-fluoro-fluoro-1,3,4,5-tetrahydro-azepino[5,4,3-cd]indol-6-oneHCID 69276722—
ProductIndol-6-oneHCID 17925780—

Reaction Steps

In a manner similar to that described for Compound PPP, 4-(8-fluoro-6-oxo-3,4,5,6-tetrahydro-1H-azepino[5,4,3-cd]indol-2-yl) benzaldehyde (100 mg, 0.32 mmol; prepared in a manner similar to that described for compound 12 from 2-bromo-8-fluoro-fluoro-1,3,4,5-tetrahydro-azepino[5,4,3-cd]indol-6-one and 4-formylphenylboronic acid) was reacted with pyrrolidine (115 mg, 1.62 mmol) to yield 8-fluoro-2-(4-pyrrolidin-1-ylmethyl-phenyl)-1,3,4,5-tetrahydro-azepinop5,4,3-cd]indol-6-one, 16 mg (14%) as a yellow solid: m.p. 264-265° C. (dec), 1H NMR (300 MHz, d6-DMSO) δ 1.72 (m, 4H), 2.49 (m, 4H), 3.04 (m, 2H), 3.39 (m, 2H), 3.64 (br s, 2H), 7.31 (dd, J=9.3, 2.4 Hz, 1H), 7.43 (m, 3H), 7.58 (d, J=8.1 Hz, 2H), 8.25 (br t, 1H), 11.66 (br s, 1H). HRMS (MALDI MH+) Calcd for C22H22N3OF: 362.1825. Found: 364.1810. Anal. (C22H22N3OF.0.5 H2O) C, H, N.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429578B2
Source datasetuspto-grants-2008_09
ORD IDord-b56498e2b2fc4286a0b0e54e2b447550
Source noteuspto-grants-2008_09