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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1020587Generated: October 26, 2026

4-(6-(Trifluoromethyl)pyridazin-3-yl)pyridin-2(1H)-one → tert-Butyl 5-methyl-7-(2-oxo-4-(6-(trifluoromethyl)pyridazin-3-yl)pyridin-1(2H)-yl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

https://huagongshe.com/reaction/1020587

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(6-(Trifluoromethyl)pyridazin-3-yl)pyridin-2(1H)-oneHCID 57950262—
Reactanttert-Butyl 7-bromo-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 57950375—
Producttert-Butyl 5-methyl-7-(2-oxo-4-(6-(trifluoromethyl)pyridazin-3-yl)pyridin-1(2H)-yl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 5795036346%

Reaction Steps

4-(6-(Trifluoromethyl)pyridazin-3-yl)pyridin-2(1H)-one (60 mg, 0.25 mmol) and tert-butyl 7-bromo-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (90 mg, 0.25 mmol) were reacted following the procedure of Example 30 (step g) to provide the title compound (60 mg, 46%) as a yellow solid: 1H NMR (500 MHz, CDCl3) δ 8.10 (d, J=8.8 Hz, 1H), 7.79 (d, J=8.8 Hz, 1H), 7.66 (d, J=7.0 Hz, 1H), 7.56 (d, J=8.2 Hz, 1H), 7.38 (d, J=1.3 Hz, 1H), 7.26-7.24 (m, 2H), 7.10 (d, J=7.8 Hz, 1H), 4.66 (s, 2H), 3.66 (t, J=3.3 Hz, 2H), 3.86 (s, 3H), 2.84 (t, J=3.3 Hz, 2H), 1.51 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08716308B2
Source datasetuspto-grants-2014_05
ORD IDord-cbfac2e7c9d5477d981710cb5b2f4572
Source noteuspto-grants-2014_05