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2,6-Lutidine → 3-[7-chloro-1-[(3S)-1-prop-2-enoylpyrrolidin-3-yl]oxyisoquinolin-3-yl]-1,4-dihydro-1,2,4-triazol-5-one

HRID 1476885
Notes
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Reaction equation

HRID 1476885 reaction equation
[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[C:7]([C:18]3[NH:22][C:21](=[O:23])[NH:20][N:19]=3)[N:8]=[C:9]2[O:12][C@H:13]2[CH2:17][CH2:16][NH:15][CH2:14]2)=[CH:4][CH:3]=1.CC1C=CC=C(C)N=1.[C:32](Cl)(=[O:35])[CH:33]=[CH2:34]>C(Cl)Cl>[C:32]([N:15]1[CH2:16][CH2:17][C@H:13]([O:12][C:9]2[C:10]3[C:5](=[CH:4][CH:3]=[C:2]([Cl:1])[CH:11]=3)[CH:6]=[C:7]([C:18]3[NH:22][C:21](=[O:23])[NH:20][N:19]=3)[N:8]=2)[CH2:14]1)(=[O:35])[CH:33]=[CH2:34]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 79372,6-LutidineHCID 13140Acryloyl chlorideHCID 136596960(S)-3-(7-chloro-1-(pyrrolidin-3-yloxy)isoquinolin-3-yl)-1H-1,2,4-triazol-5(4H)-one

Product 1

HCID 1362950683-[7-chloro-1-[(3S)-1-prop-2-enoylpyrrolidin-3-yl]oxyisoquinolin-3-yl]-1,4-dihydro-1,2,4-triazol-5-oneYield 18.6%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Conditions

Temperature
0 °C

Procedure

To a mixture of (S)-3-(7-chloro-1-(pyrrolidin-3-yloxy)isoquinolin-3-yl)-1H-1,2,4-triazol-5(4H)-one (180 mg, 0.489 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine (157 mg, 1.467 mmol) at −20° C. followed by the dropwise addition of acryloyl chloride (88 mg, 0.978 mmol, 10 mg/mL in dry DCM). The reaction mixture was warmed to 0° C. over a 30 minute period. The reaction was quenched with MeOH (5 mL) and the mixture concentrated in vacuo. The crude product was purified by preparative HPLC to give the title compound (35 mg, 18%). 1H NMR (400 MHz, DMSO-d6) δ ppm 12.06 (br, 1H), 11.84 (s, 1H), 8.16 (s, 1H), 8.09 (dd, J=1.8 Hz and 8.9 Hz, 1H), 8.03 (s, 1H), 7.83-7.86 (m, 1H), 6.55-6.72 (m, 1H), 6.12-6.19 (m, 2H), 5.63-5.72 (m, 1H), 4.65-4.12 (m, 4H), 2.25-2.42 (m, 2H).

Workup

  1. customThe reaction was quenched with MeOH (5 mL)
  2. concentrationthe mixture concentrated in vacuo
  3. customThe crude product was purified by preparative HPLC

Sources & evidence

ORD record
ord-e148cc3f82bf4568be73c0b6570942dd
Source dataset
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09402841B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes