1-Hydroxybenzotriazole → tert-butyl 4-(1-(4-methoxybenzyl)-4-(2-fluoro-4-(1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-5-carboxamido)phenoxy)-1H-pyrazolo[3,4-b]pyridin-3-yl)piperazine-1-carboxylate

HRID 2241290Notes

Reaction equation

HRID 2241290 reaction equation
[CH3:1][O:2][C:3]1[CH:40]=[CH:39][C:6]([CH2:7][N:8]2[C:12]3=[N:13][CH:14]=[CH:15][C:16]([O:17][C:18]4[CH:23]=[CH:22][C:21]([NH2:24])=[CH:20][C:19]=4[F:25])=[C:11]3[C:10]([N:26]3[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:28][CH2:27]3)=[N:9]2)=[CH:5][CH:4]=1.[F:41][C:42]1[CH:47]=[CH:46][C:45]([N:48]2[C:53](=[O:54])[C:52]([C:55](O)=[O:56])=[CH:51][CH:50]=[N:49]2)=[CH:44][CH:43]=1.Cl.C(N=C=NCCCN(C)C)C.N1(O)C2C=CC=CC=2N=N1.C(N(C(C)C)C(C)C)C>CN(C=O)C>[F:25][C:19]1[CH:20]=[C:21]([NH:24][C:55]([C:52]2[C:53](=[O:54])[N:48]([C:45]3[CH:46]=[CH:47][C:42]([F:41])=[CH:43][CH:44]=3)[N:49]=[CH:50][CH:51]=2)=[O:56])[CH:22]=[CH:23][C:18]=1[O:17][C:16]1[CH:15]=[CH:14][N:13]=[C:12]2[N:8]([CH2:7][C:6]3[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:40][CH:39]=3)[N:9]=[C:10]([N:26]3[CH2:31][CH2:30][N:29]([C:32]([O:34][C:35]([CH3:37])([CH3:36])[CH3:38])=[O:33])[CH2:28][CH2:27]3)[C:11]=12

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 667671712-(4-Fluorophenyl)-3-oxo-2,3-dihydropyridazine-4-carboxylic acidHCID 68510616tert-butyl 4-(1-(4-methoxybenzyl)-4-(4-amino-2-fluorophenoxy)-1H-pyrazolo[3,4-b]pyridin-3-yl)piperazine-1-carboxylate

Product 1

HCID 68509670tert-butyl 4-(1-(4-methoxybenzyl)-4-(2-fluoro-4-(1-(4-fluorophenyl)-6-oxo-1,6-dihydropyridazine-5-carboxamido)phenoxy)-1H-pyrazolo[3,4-b]pyridin-3-yl)piperazine-1-carboxylateYield 64.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A 50 mL round-bottomed flask was charged with tert-butyl 4-(1-(4-methoxybenzyl)-4-(4-amino-2-fluorophenoxy)-1H-pyrazolo[3,4-b]pyridin-3-yl)piperazine-1-carboxylate (63.5 mg, 0.1157 mmol), 2-(4-fluorophenyl)-3-oxo-2,3-dihydropyridazine-4-carboxylic acid (54.21 mg, 0.2315 mmol), N1-((ethylimino)methylene)-N3,N3-dimethylpropane-1,3-diamine hydrochloride (110.9 mg, 0.5787 mmol), 1H-benzo[d][1,2,3]triazol-1-ol (78.20 mg, 0.5787 mmol), N-ethyl-N-isopropylpropan-2-amine (0.2066 ml, 1.157 mmol) and DMF (10 mL). The reaction mixture was stirred at ambient temperature overnight. The reaction was partitioned between EtOAc and H2O. The phases were separated and the aqueous phase was re-extracted with EtOAc. The combined organic layers were dried (Na2SO4), filtered and concentrated to yield a crude product. The crude product was purified by silica gel chromatography (DCM/7 M NH3 in MeOH from 100/1 to 10/1, v/v) to afford product (56.8 mg, 64.17%). LRMS (APCI pos) m/e 765 (M+1).

Workup

  1. customThe reaction was partitioned between EtOAc and H2O
  2. customThe phases were separated
  3. extractionthe aqueous phase was re-extracted with EtOAc
  4. dry with materialThe combined organic layers were dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customto yield a crude product
  8. customThe crude product was purified by silica gel chromatography (DCM/7 M NH3 in MeOH from 100/1 to 10/1

Sources & evidence

ORD record
ord-cd63b64643234c9bb590abda59740d7d
Source dataset
uspto-grants-2010_05
Patent number
US07723330B2

Reaction notes

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