Water → 1-(4-acetylphenyl)-8-{[(2-chloropyridin-3-yl)carbonyl]amino}-4,5-dihydro-1H-benzo[g]indazole-3-carboxamide

HRID 457336Notes

Reaction equation

[Cl:1][C:2]1[C:7]([C:8]([NH:10][C:11]2[CH:34]=[CH:33][C:14]3[CH2:15][CH2:16][C:17]4[C:18]([C:30]([NH2:32])=[O:31])=[N:19][N:20]([C:22]5[CH:27]=[CH:26][C:25]([C:28]#[CH:29])=[CH:24][CH:23]=5)[C:21]=4[C:13]=3[CH:12]=2)=[O:9])=[CH:6][CH:5]=[CH:4][N:3]=1.O.[OH:36]S(C(F)(F)F)(=O)=O.C([O-])(O)=O.[Na+]>O1CCOCC1>[C:28]([C:25]1[CH:26]=[CH:27][C:22]([N:20]2[C:21]3[C:13]4[CH:12]=[C:11]([NH:10][C:8]([C:7]5[C:2]([Cl:1])=[N:3][CH:4]=[CH:5][CH:6]=5)=[O:9])[CH:34]=[CH:33][C:14]=4[CH2:15][CH2:16][C:17]=3[C:18]([C:30]([NH2:32])=[O:31])=[N:19]2)=[CH:23][CH:24]=1)(=[O:36])[CH3:29]

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 8-{[(2-chloropyridin-3-yl)carbonyl]amino}-1-(4-ethynylphenyl)-4,5-dihydro-1H-benzo[g]indazole-3-carboxamide (442 mg, 1.2 mmol), water (65 mg, 3.6 mmol), and triflic acid (270 mg, 1.8 mmol) in dioxane (10 mL) was heated to 100° C. for 18 h. The mixture was cooled to RT, aqueous NaHCO3 was added, and filtered. The product was washed with water and ether, and dried. This gave product (293 mg, 67%). 1H NMR was consistent with its structure.

Workup

temperatureThe mixture was cooled to RT
filtrationfiltered
washThe product was washed with water and ether
customdried

Sources & evidence

ORD record: ord-5b2adc3a27b945769eb500b2a81b6e8b
Source dataset: uspto-grants-2007_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07186743B2

Reaction notes

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