Methyl chloroformate → 2-((3-(1-(1-Acetylazetidin-3-yl)piperidin-4-yl)-2-chloro-5-cyanophenyl)amino)-4-(cyclopropylamino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile

HRID 921700Notes

Reaction equation

HRID 921700 reaction equation
[NH:1]1[CH2:4][CH:3]([N:5]2[CH2:10][CH2:9][CH:8]([C:11]3[C:12]([Cl:35])=[C:13]([NH:19][C:20]4[N:25]=[C:24]([NH:26][CH:27]5[CH2:29][CH2:28]5)[C:23]5=[N:30][CH:31]=[C:32]([C:33]#[N:34])[N:22]5[N:21]=4)[CH:14]=[C:15]([C:17]#[N:18])[CH:16]=3)[CH2:7][CH2:6]2)[CH2:2]1.C(N([CH2:41][CH3:42])CC)C.ClC(OC)=[O:45]>C(Cl)Cl>[C:41]([N:1]1[CH2:2][CH:3]([N:5]2[CH2:6][CH2:7][CH:8]([C:11]3[C:12]([Cl:35])=[C:13]([NH:19][C:20]4[N:25]=[C:24]([NH:26][CH:27]5[CH2:28][CH2:29]5)[C:23]5=[N:30][CH:31]=[C:32]([C:33]#[N:34])[N:22]5[N:21]=4)[CH:14]=[C:15]([C:17]#[N:18])[CH:16]=3)[CH2:9][CH2:10]2)[CH2:4]1)(=[O:45])[CH3:42]

Participants

5

Reactant 3

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 86708575HCID 86708575, compound

Product 1

HCID 867085762-((3-(1-(1-Acetylazetidin-3-yl)piperidin-4-yl)-2-chloro-5-cyanophenyl)amino)-4-(cyclopropylamino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a suspension of 2-((3-(1-(azetidin-3-yl)piperidin-4-yl)-2-chloro-5-cyanophenyl)amino)-4-(cyclopropylamino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (Example 318) (25 mg, 0.051 mmol) and triethylamine (0.014 mL, 0.102 mmol) in CH2Cl2 (1.5 mL) was added dropwise acetyl chloride (4.41 mg, 0.056 mmol, diluted with DCM, 10V % in DCM, 44 uL) at 0° C. The suspension converted to a clear solution in a few min, and continued stirring at 0° C. for 1 h. Removal of the solvent, and the crude material was purified via preparative LC/MS with the following conditions: Column: Waters XBridge C18, 19×200 mm, 5-μm particles; Mobile Phase A: water with 20-mM ammonium acetate; Mobile Phase B: 95:5 acetonitrile: water with 20-mM ammonium acetate; Gradient: 20-60% B over 20 minutes, then a 5-minute hold at 100% B; Flow: 20 mL/min. Fractions containing the desired product were combined and dried via centrifugal evaporation left the titled product (15.6 mg)

Workup

  1. customRemoval of the solvent
  2. customthe crude material was purified via preparative LC/MS with the following conditions
  3. waitGradient: 20-60% B over 20 minutes
  4. customa 5-minute hold
  5. additionFractions containing the desired product
  6. customdried via centrifugal evaporation
  7. waitleft the titled product (15.6 mg)

Sources & evidence

ORD record
ord-1a09ea90c87142e8bbb5f25a94e0ee81
Source dataset
uspto-grants-2016_03
Patent number
US09273057B2

Reaction notes

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