Diisopropylethylamine → HCID 178448520, compound

HRID 1530554Notes

Reaction equation

HRID 1530554 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:14][CH2:13][CH2:12][N:11]3[C:7](=[N:8][C:9]([C:15]4[C:16]([C:20]([F:23])([F:22])[F:21])=[N:17][NH:18][CH:19]=4)=[CH:10]3)[C:6]=2[CH:24]=1.[C:25]([N:29]1[CH2:34][CH2:33][CH:32]([SH:35])[CH2:31][CH2:30]1)([CH3:28])([CH3:27])[CH3:26].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.CCN(C(C)C)C(C)C>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:25]([N:29]1[CH2:34][CH2:33][CH:32]([S:35][C:2]2[CH:3]=[CH:4][C:5]3[O:14][CH2:13][CH2:12][N:11]4[CH:10]=[C:9]([C:15]5[C:16]([C:20]([F:23])([F:22])[F:21])=[N:17][NH:18][CH:19]=5)[N:8]=[C:7]4[C:6]=3[CH:24]=2)[CH2:31][CH2:30]1)([CH3:28])([CH3:26])[CH3:27]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 866714621-tert-Butylpiperidine-4-thiolHCID 178506298HCID 178506298, compound

Product 1

HCID 178448520HCID 178448520, compoundYield 63.3%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 9-bromo-2-(3-trifluoromethyl-1H-pyrazol-4-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulene (73 mg, 0.18 mmol), 1-tert-butylpiperidine-4-thiol (63 mg, 0.37 mmol), Pd2(dba)3 (55 mg, 0.06 mmol), Xantphos (35 mg, 0.06 mmol) and DIPEA (125 μL, 0.73 mmol) in dioxane (3 mL) was purged with argon and heated at 100° C. for 2 h. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge which was washed with MeOH and the product eluted with 2M NH3/MeOH. The resulting residue was purified by column chromatography (Si-PCC, gradient 0-10% MeOH in DCM) followed by reverse phase HPLC (Phenomenex Gemini 5 μm C18, on a gradient 5-95%, 0.1% HCO2H in acetonitrile/water) affording 159 (56 mg, 31%). LCMS: RT 3.11 min [M+H]+ 492.1. 1H NMR (DMSO, 400 MHz): δ 8.51 (1H, d, J=2.40 Hz), 8.26-8.25 (1H, m), 8.21 (1H, s), 7.42 (1H, s), 7.31 (1H, dd, J=8.46, 2.42 Hz), 7.01 (1H, d, J=8.46 Hz), 4.47 (4H, s), 3.12-3.01 (1H, m), 3.05-2.93 (2H, m), 2.24 (2H, t, J=11.08 Hz), 1.92 (2H, d, J=12.67 Hz), 1.48-1.47 (2H, m), 1.02 (9H, s)

Workup

  1. customwas purged with argon
  2. washwas washed with MeOH
  3. washthe product eluted with 2M NH3/MeOH
  4. customThe resulting residue was purified by column chromatography (Si-PCC, gradient 0-10% MeOH in DCM)

Sources & evidence

ORD record
ord-66cae8bc67ce4a1a94bbb1e84431d0a9
Source dataset
uspto-grants-2015_07
Patent number
US09090628B2

Reaction notes

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