1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole → HCID 68181885, compound

HRID 1398632Notes

Reaction equation

HRID 1398632 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([C:17]#[C:18][C:19]([CH3:22])([OH:21])[CH3:20])[CH:15]=3)[CH:10]=[N:9]2)[C:5](Br)=[CH:4][N:3]=1.[CH3:24][N:25]1[CH:29]=[C:28](B2OC(C)(C)C(C)(C)O2)[CH:27]=[N:26]1>>[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([C:17]#[C:18][C:19]([CH3:22])([OH:21])[CH3:20])[CH:15]=3)[CH:10]=[N:9]2)[C:5]([C:28]2[CH:27]=[N:26][N:25]([CH3:24])[CH:29]=2)=[CH:4][N:3]=1

Participants

3

Reactant 2

HCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 68181823HCID 68181823, compound

Product 1

HCID 68181885HCID 68181885, compound

Procedure

5-bromo-4-(6-bromoindazol-1-yl)pyrimidin-2-amine (3 g) was reacted with 2-methyl-3-butyn-2-ol (1 eq) via Sonagashira Coupling to afford 0.7 g of 4-[1-(2-amino-5-bromo-pyrimidin-4-yl)indazol-6-yl]-2-methyl-but-3-yn-2-ol following flash column chromatography. 4-[1-(2-amino-5-bromo-pyrimidin-4-yl)indazol-6-yl]-2-methyl-but-3-yn-2-ol (0.1 g) was reacted with 1-methyl-4-pyrazoleboronic acid pinacol ester via Suzuki Coupling to afford 12.2 mg of 4-[1-[2-amino-5-(1-methylpyrazol-4-yl)pyrimidin-4-yl]indazol-6-yl]-2-methyl-but-3-yn-2-ol following reverse phase hplc purification. MS (Q1) 374. 1H NMR (400 MHz, DMSO) delta 8.57 (s, 1H), 8.30 (s, 1H), 7.88-7.81 (m, 2H), 7.48 (s, 1H), 7.24 (dd, J=8.3, 1.1 Hz, 1H), 7.05 (s, 2H), 6.98 (s, 1H), 5.47 (s, 1H), 3.73 (s, 3H), 1.48 (s, 6H).

Sources & evidence

ORD record
ord-df48a1b9e8754cdbaab84e1eb2693435
Source dataset
uspto-grants-2014_12
Patent number
US08901313B2

Reaction notes

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