Dimethylformamide → 4-((6-((1R*,2S*)-5'-methoxy-2'-oxospiro[cyclopropane-1,3'-indoline]-2-yl)-1H-indazol-3-yl)ethynyl)benzaldehyde

HRID 447560Notes

Reaction equation

HRID 447560 reaction equation
I[C:2]1[C:10]2[C:5](=[CH:6][C:7]([C@H:11]3[C@@:13]4([C:21]5[C:16](=[CH:17][CH:18]=[C:19]([O:22][CH3:23])[CH:20]=5)[NH:15][C:14]4=[O:24])[CH2:12]3)=[CH:8][CH:9]=2)[NH:4][N:3]=1.[C:25]([C:27]1[CH:34]=[CH:33][C:30]([CH:31]=[O:32])=[CH:29][CH:28]=1)#[CH:26].CN(C=O)C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I.CCN(CC)CC>[CH3:23][O:22][C:19]1[CH:20]=[C:21]2[C:16](=[CH:17][CH:18]=1)[NH:15][C:14](=[O:24])[C@:13]12[CH2:12][C@H:11]1[C:7]1[CH:6]=[C:5]2[C:10]([C:2]([C:26]#[C:25][C:27]3[CH:34]=[CH:33][C:30]([CH:31]=[O:32])=[CH:29][CH:28]=3)=[N:3][NH:4]2)=[CH:9][CH:8]=1

Participants

7

Reactant 3

HCID 6228DimethylformamideHCID 27716454-EthynylbenzaldehydeHCID 178487035HCID 178487035, compound

Product 1

HCID 1784870344-((6-((1R*,2S*)-5'-methoxy-2'-oxospiro[cyclopropane-1,3'-indoline]-2-yl)-1H-indazol-3-yl)ethynyl)benzaldehydeYield 63%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8471TriethylamineSolvent

Conditions

Temperature
100 °C

Procedure

To a mixture of (1R*,2S*)-2-(3-iodo-1H-indazol-6-yl)-5′-methoxyspiro [cyclopropane-1,3′-indolin]-2′-one (862 mg, 2 mmol), 4-ethynylbenzaldehyde (286 mg, 2.2 mmol), Pd(PPh3)2Cl2 (28 mg, 0.04 mmol, 2 mmol %) and CuI (15.3 mg, 0.08 mmol, 4 mmol %) in a 50 mL of flask was added DMF (6 mL) and Et3N (10 mL). The resulting mixture was stirred at 100° C. (oil temp.) for 90 min. After removal of Et3N, H2O (20 mL) was added and the precipiates were collected by suction filtration. Crystals formed in the mother liquor were collected and dried to give the title compound (106 mg) as a yellow solid. The remaining residue was combined and purified by flash chromatography (gradient: EtOAc.hex 0 to 50% to 100%), followed by trituration with H2O to give the title compound (440 mg) as a yellow solid. Total 546 mg (yield 63%). 1H NMR (400 MHz, DMSO-d6) δ 13.63 (s, 1H), 10.44 (s, 1H), 10.05 (s, 1H), 7.98 (d, J=7.6 Hz, 2H), 7.87 (d, J=8.0 Hz, 2H), 7.79 (d, J=8.4 Hz, 1H), 7.57 (s, 1H), 7.10 (d, J=8.8 Hz, 1H), 6.75 (d, J=8.4 Hz, 1H), 6.58 (d, J=8.0 Hz, 1H), 5.63 (s, 1H), 3.29 (s, 3H), 3.22 (t, J=8.4 Hz, 1H), 2.40-2.33 (m, 1H), 1.99 (dd, J=8.8 Hz, 4.8 Hz, 1H); MS ESI 434.2 [M+H]+, calcd for [C27H19N3O3+H]+ 434.1.

Workup

  1. customAfter removal of Et3N, H2O (20 mL)
  2. additionwas added
  3. filtrationthe precipiates were collected by suction filtration
  4. customCrystals formed in the mother liquor
  5. customwere collected
  6. customdried

Sources & evidence

ORD record
ord-586f47ad23604b03b0aef318955051b9
Source dataset
uspto-grants-2013_07
Patent number
US08481525B2

Reaction notes

Loading…