1H-Indazol-5-amine → N4-(5-cyclopropyl-1H-pyrazol-3-yl)-N2-(1H-indazol-5-yl)pyrimidine-2,4-diamine

HRID 1484828Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]2[CH:13]=[C:12]([CH:14]3[CH2:16][CH2:15]3)[NH:11][N:10]=2)[CH:5]=[CH:4][N:3]=1.[NH:17]1[C:25]2[C:20](=[CH:21][C:22]([NH2:26])=[CH:23][CH:24]=2)[CH:19]=[N:18]1>O1CCOCC1.CCCCO>[CH:14]1([C:12]2[NH:11][N:10]=[C:9]([NH:8][C:6]3[CH:5]=[CH:4][N:3]=[C:2]([NH:26][C:22]4[CH:21]=[C:20]5[C:25](=[CH:24][CH:23]=4)[NH:17][N:18]=[CH:19]5)[N:7]=3)[CH:13]=2)[CH2:16][CH2:15]1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrimidin-4-amine (200 mg, 0.8 5 mmol, 1 equiv.) and 1H-indazol-5-amine (340 mg, 2.55 mmol, 3 equiv.) in 1,4-dioxane (1 ml) and n-BuOH (0.5 ml) was heated to 100° C. The mixture was allowed to react overnight (about 15 hr). The mixture was filtered under reduced pressure to afford title compound N4-(5-cyclopropyl-1H-pyrazol-3-yl)-N2-(1H-indazol-5-yl)pyrimidine-2,4-diamine (Compound 13) (44.5 mg, 15.8%) as solid. LC-MS (m/z)=333.1 [M+H]+; 1H NMR (400 MHz, DMSO-d6): δ 0.44 (s, J=17.7 Hz, 2H), 0.82 (t, J=17.7 Hz, 2H), 1.758 (s, 1H), 6.02 (s, 1H), 6.41 (s, 1H), 7.46 (d, J=8.7 Hz, 1H), 7.56 (d, J=9 Hz, 1H), 7.92 (d, J=6.6 Hz, 1H), 8.04 (d, J=9.6 Hz, 2H), 9.71 (s, 1H), 10.38 (s, 1H), 11.77 (s, 1H), 13.05 (s, 1H).

Workup

customto react overnight (about 15 hr)
filtrationThe mixture was filtered under reduced pressure

Sources & evidence

ORD record: ord-5c3dbdf758384a898016311b0e5bae29
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09422271B2

Reaction notes

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