HCID 58204614, compound → 4-[2(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1498172Notes

Reaction equation

HRID 1498172 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH:12]=[C:11]([C:14]2[N:35]=[CH:34][C:17]3[C:18]4[N:22]([CH2:23][CH2:24][O:25][C:16]=3[CH:15]=2)[CH:21]=[C:20]([C:26]2[N:27]([CH:31]([CH3:33])[CH3:32])[N:28]=[CH:29][N:30]=2)[N:19]=4)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]>[Pt]=O>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([C:14]2[N:35]=[CH:34][C:17]3[C:18]4[N:22]([CH2:23][CH2:24][O:25][C:16]=3[CH:15]=2)[CH:21]=[C:20]([C:26]2[N:27]([CH:31]([CH3:32])[CH3:33])[N:28]=[CH:29][N:30]=2)[N:19]=4)[CH2:12][CH2:13]1)=[O:7])([CH3:3])([CH3:2])[CH3:4]

Participants

3

Reactant 1

HCID 58204614HCID 58204614, compound

Product 1

HCID 582045224-[2(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-piperidine-1-carboxylic acid tert-butyl esterYield 63,652.898%

Reagents, catalysts & solvents 1

HCID 82844Platinum oxide (PtO)Catalyst

Procedure

A mixture of 4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (89 mg, 0.19 mmol) in IMS (10 mL) was treated with platinum oxide (10 mg), the reaction mixture degassed and stirred at RT under an atmosphere of hydrogen for 72 h. Further platinum oxide (10 mg) was added and stirring continued at RT for 18 h before the filtering through Celite® and concentrating in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0 to 5% methanol in DCM) to give 4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a,9-triaza-benzo[e]azulen-8-yl]-piperidine-1-carboxylic acid tert-butyl ester (58 g, 64%). LCMS RT=2.72, [M+H]+=480

Workup

  1. customthe reaction mixture degassed
  2. additionFurther platinum oxide (10 mg) was added
  3. stirringstirring
  4. waitcontinued at RT for 18 h
  5. concentrationbefore the filtering through Celite® and concentrating in vacuo

Sources & evidence

ORD record
ord-89f790f26f3b4ee3a9561f33497a2a7a
Source dataset
uspto-grants-2015_12
Patent number
US09198918B2

Reaction notes

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