Diisopropylethylamine → HCID 87401043, compound

HRID 2089306Notes

Reaction equation

HRID 2089306 reaction equation
[F:1][C:2]1([F:25])[CH2:8][CH2:7][N:6]([C:9]2[N:13]([CH3:14])[N:12]=[CH:11][C:10]=2[N+:15]([O-])=O)[CH2:5][CH2:4][CH:3]1[NH:18][C:19](=[O:24])[C:20]([F:23])([F:22])[F:21].CCN(C(C)C)C(C)C.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.[C:68]([O:72][C:73]([NH:75][C:76]1[S:80][C:79]([C:81]2[C:86]([F:87])=[CH:85][CH:84]=[CH:83][C:82]=2[F:88])=[N:78][C:77]=1[C:89](O)=[O:90])=[O:74])([CH3:71])([CH3:70])[CH3:69]>CO.C(Cl)Cl.[Pd]>[F:1][C:2]1([F:25])[CH:3]([NH:18][C:19](=[O:24])[C:20]([F:23])([F:22])[F:21])[CH2:4][CH2:5][N:6]([C:9]2[N:13]([CH3:14])[N:12]=[CH:11][C:10]=2[NH:15][C:89]([C:77]2[N:78]=[C:79]([C:81]3[C:82]([F:88])=[CH:83][CH:84]=[CH:85][C:86]=3[F:87])[S:80][C:76]=2[NH:75][C:73](=[O:74])[O:72][C:68]([CH3:71])([CH3:70])[CH3:69])=[O:90])[CH2:7][CH2:8]1

Participants

8

Reactant 4

HCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 674381985-((Tert-butoxycarbonyl)amino)-2-(2,6-difluorophenyl)thiazole-4-carboxylic acidHCID 87400101HCID 87400101, compound

Product 1

HCID 87401043HCID 87401043, compoundYield 69.8%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 887MethanolSolventHCID 6344DichloromethaneSolvent2×

Procedure

A solution of N-(5,5-difluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)azepan-4-yl)-2,2,2-trifluoroacetamide (0.29 g, 0.78 mmol) in MeOH (20 mL) was passed through the H-Cube® (Full H2 Mode, 70° C., flow rate: 1 mL/min, 30 mm 10% Pd/C cartridge). The solvent was removed under reduced pressure to give the crude amine. To a solution of this amine (0.26 g, 0.78 mmol) in DCM (15 mL) was added DIPEA (0.68 mL, 3.9 mmol), PyBOP (0.61 g, 1.17 mmol) and 5-(tert-butoxycarbonylamino)-2-(2,6-difluorophenyl)thiazole-4-carboxylic acid (0.30 g, 0.86 mmol) and the mixture was stirred at room temperature for 18 hr. The mixture was diluted with DCM and washed with water. The organic layer was separated, dried over Na2SO4 and the solvent removed under reduced pressure. Purification via silica gel column chromatography (0-80% EtOAc/isohexane) gave tert-butyl 4-(5-(4,4-difluoro-5-(2,2,2-trifluoroacetamido)-azepan-1-yl)-1-methyl-1H-pyrazol-4-ylcarbamoyl)-2-(2,6-difluorophenyl)thiazol-5-ylcarbamate as a white solid (0.37 g, 69%). 1H NMR (400 MHz, CDCl3) δ 10.28 (s, 1H), 8.71 (s, 1H), 7.82 (s, 1H), 7.42-7.33 (m, 1H), 7.11-7.01 (m, 2H), 6.72 (d, J=9.0 Hz, 1H), 4.73-4.57 (m, 1H), 3.77 (s, 3H), 3.51-3.37 (m, 2H), 3.36-3.25 (m, 2H), 2.49-2.36 (m, 2H), 2.25-2.03 (m, 2H), 1.55 (s, 9H).

Workup

  1. customThe solvent was removed under reduced pressure
  2. customto give the crude amine
  3. washwashed with water
  4. customThe organic layer was separated
  5. dry with materialdried over Na2SO4
  6. customthe solvent removed under reduced pressure
  7. customPurification via silica gel column chromatography (0-80% EtOAc/isohexane)

Sources & evidence

ORD record
ord-479db78acd5a4f469a31c20c3793c64b
Source dataset
uspto-grants-2013_05
Patent number
US08436001B2

Reaction notes

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