Sodium Hydroxide → HCID 86703978, compound

HRID 1773902Notes

Reaction equation

HRID 1773902 reaction equation
[CH3:1][C:2]1[N:11]2[C:5]([CH:6]([O:16][CH:17]3[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]3)[C:7]3[CH:15]=[CH:14][CH:13]=[CH:12][C:8]=3[CH2:9][CH2:10]2)=[N:4][C:3]=1[C:24]1[CH:29]=[CH:28][C:27]([NH2:30])=[CH:26][CH:25]=1.[CH2:31]([O:35][C:36](Cl)=[O:37])[CH:32]([CH3:34])[CH3:33].[OH-].[Na+]>C(Cl)Cl.CN(C)C1C=CN=CC=1.O>[CH2:31]([O:35][C:36](=[O:37])[NH:30][C:27]1[CH:28]=[CH:29][C:24]([C:3]2[N:4]=[C:5]3[N:11]([CH2:10][CH2:9][C:8]4[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=4[CH:6]3[O:16][CH:17]3[CH2:18][CH2:19][N:20]([CH3:23])[CH2:21][CH2:22]3)[C:2]=2[CH3:1])=[CH:25][CH:26]=1)[CH:32]([CH3:34])[CH3:33]

Participants

7

Reactant 3

HCID 14798Sodium HydroxideHCID 62365Isobutyl chloroformateHCID 86703979HCID 86703979, compound

Product 1

HCID 86703978HCID 86703978, compound

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 962WaterSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of 4-[1-methyl-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulen-2-yl]-phenylamine (example 173) (50 mg, 0.124 mmole) in CH2Cl2 (0.5 mL) is added 4-dimethylaminopyridine (17 mg, 0.136 mmole). The reaction mixture is cooled to 0° C. and isobutylchloroformate (18 μL, 0.136 mmole) is added dropwise. The reaction mixture is stirred at room temperature 2 h, diluted with water and made alkaline with 1N NaOH. The aqueous phase is extracted three times with CH2Cl2. The organic phase is dried over magnesium sulphate, filtered and the solvent is removed under reduced pressure. The residue is purified by preparative TLC over silica gel eluting with (acetone:NEt3) to afford {4-[1-methyl-4-(1-methyl-piperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulen-2-yl]-phenyl}-carbamic acid isobutyl ester melting at 196° C.

Workup

  1. extractionThe aqueous phase is extracted three times with CH2Cl2
  2. dry with materialThe organic phase is dried over magnesium sulphate
  3. filtrationfiltered
  4. customthe solvent is removed under reduced pressure
  5. customThe residue is purified by preparative TLC over silica gel eluting with (acetone:NEt3)

Sources & evidence

ORD record
ord-f72d25b62ba54492aca214da13ef12b7
Source dataset
uspto-grants-2016_02
Patent number
US09255101B2

Reaction notes

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