Triethylamine → 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-yl)cyclopropanecarboxamide

HRID 1991899Notes

Reaction equation

HRID 1991899 reaction equation
[F:1][C:2]1([F:17])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14]([OH:16])=O)[CH2:13][CH2:12]3)=[CH:10][C:4]=2[O:3]1.[F:18][C:19]1[C:20]([NH2:33])=[CH:21][C:22]2[CH:23]=[C:24]3[C:30]([CH3:32])([CH3:31])[CH2:29][CH2:28][N:25]3[C:26]=2[CH:27]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C>[F:17][C:2]1([F:1])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14]([NH:33][C:20]4[C:19]([F:18])=[CH:27][C:26]5[N:25]6[CH2:28][CH2:29][C:30]([CH3:32])([CH3:31])[C:24]6=[CH:23][C:22]=5[CH:21]=4)=[O:16])[CH2:12][CH2:13]3)=[CH:10][C:4]=2[O:3]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 442061031-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxylic acidHCID 581832876-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-amine

Product 1

HCID 591294801-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-yl)cyclopropanecarboxamideYield 65%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxylic acid (346 mg, 1.4 mmol), 6-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-amine (260 mg, 1.2 mmol) and HATU (543 mg, 1.4 mmol) in DMF (5 mL) was added triethylamine (0.40 mL, 2.9 mmol). The reaction was stirred at room temperature overnight and then partitioned between ethyl acetate and water. The aqueous layer was extracted with ethyl acetate and the combined organic layers were washed with brine and dried over MgSO4. After the removal of solvent, the residue was purified by column chromatography (10-20% ethyl acetate-hexanes) to afford 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-yl)cyclopropanecarboxamide (342 mg, 65%). ESI-MS m/z calc. 442.2, found 443.5 (M+1)+. Retention time 2.30 minutes. 1H NMR (400 MHz, DMSO-d6) δ 8.20 (d, J=7.6 Hz, 1H), 7.30-7.25 (m, 3H), 7.20 (m, 1H), 7.12 (d, J=8.2 Hz, 1H), 6.84 (d, J=11.1 Hz, 1H), 6.01 (d, J=0.5 Hz, 1H), 3.98 (t, J=6.8 Hz, 2H), 2.37 (t, J=6.8 Hz, 2H), 1.75 (dd, J=3.8, 6.9 Hz, 2H), 1.37 (s, 6H) and 1.14 (dd, J=3.9, 6.9 Hz, 2H) ppm.

Workup

  1. custompartitioned between ethyl acetate and water
  2. extractionThe aqueous layer was extracted with ethyl acetate
  3. washthe combined organic layers were washed with brine
  4. dry with materialdried over MgSO4
  5. customAfter the removal of solvent
  6. customthe residue was purified by column chromatography (10-20% ethyl acetate-hexanes)

Sources & evidence

ORD record
ord-d616f335c83f40fd93449c1a01b53d08
Source dataset
uspto-grants-2010_01
Patent number
US07645789B2

Reaction notes

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