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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1020634Generated: October 26, 2026

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

https://huagongshe.com/reaction/1020634

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 7-bromo-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 57950375—
Reactant5-(4-(Trifluoromethyl)phenyl)pyridazin-3(2H)-oneHCID 57950387—
Producttert-Butyl 5-methyl-7-(6-oxo-4-(4-(trifluoromethyl)phenyl)pyridazin-1(6H)-yl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylateHCID 5795039730.2%

Reaction Steps

5-(4-(Trifluoromethyl)phenyl)pyridazin-3(2H)-one (100 mg, 0.41 mmol) and tert-butyl 7-bromo-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (151 mg, 0.41 mmol) were reacted following the procedure of Example 30 (step g) to provide the title compound (65 mg, 30%) as a yellow solid: 1H NMR (300 MHz, CDCl3) δ 8.20 (s, 1H), 7.81 (d, J=8.4 Hz, 2H), 7.76 (d, J=8.4 Hz, 2H), 7.59 (d, J=1.6 Hz, 1H), 7.54 (d, J=8.4 Hz, 1H), 7.31 (d, J=6.9 Hz, 1H), 7.26-7.24 (m, 1H), 4.62 (s, 2H), 3.89-3.80 (br m, 2H), 3.66 (s, 3H), 2.84 (br m, 2H), 1.51 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08716308B2
Source datasetuspto-grants-2014_05
ORD IDord-54d5b1efe222456fa54e18c34a6c0d88
Source noteuspto-grants-2014_05