Dichloromethane → HCID 71256167, compound

HRID 388443Notes

Reaction equation

HRID 388443 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C:12]3[N:17]=[CH:16][C:15]([N:18]([CH3:27])[C:19](=[O:26])/[CH:20]=[CH:21]/[CH2:22][N:23]([CH3:25])[CH3:24])=[CH:14][CH:13]=3)[N:9]=[C:10](I)[C:3]=12.[CH2:28]([Cl:30])Cl>COCCOC.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C:12]3[N:17]=[CH:16][C:15]([N:18]([CH3:27])[C:19](=[O:26])/[CH:20]=[CH:21]/[CH2:22][N:23]([CH3:25])[CH3:24])=[CH:14][CH:13]=3)[N:9]=[C:10]([C:14]3[CH:15]=[CH:16][C:28]([Cl:30])=[CH:12][CH:13]=3)[C:3]=12

Participants

6

Reactant 2

HCID 6344DichloromethaneHCID 71256036HCID 71256036, compound

Product 1

HCID 71256167HCID 71256167, compoundYield 291.6%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

To a suspension of (E)-N-(6-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyridine-3-yl)-4-(dimethylamino)-N-methylbut-2-enamide (65) (100 mg, 0.21 mmol), arylboronic acid (0.27 mmol) and K3PO4.3H2O (168 mg, 0.63 mmol) in DME (8 mL) and water (2 mL) was added Pd(dppf)Cl2.DCM (9 mg, 0.02 mmol). The resulting mixture was purged with N2 (3×) before microwaved at 90° C. for 45 min. The solvents were evaporated and the residual was directly loaded to a silica gel column and pre-purified by column chromatography (0 to 10% MeOH in DCM) followed by preparative HPLC purification (RP C18, 10 to 95% acetonitrile in water (0.2% NH3)) to give (E)-N-(6-(4-amino-3-(4-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyridin-3-yl)-4-(dimethylamino)-N-methylbut-2-enamide (66) (27 mg, 28%) as a white solid. 1H NMR (400 MHz, DMSO) δ 9.82 (br, 2H), 8.57 (d, J=2.5 Hz, 1H), 8.40 (s, 1H), 8.33 (d, J=8.7 Hz, 1H), 8.08 (dd, J=8.7, 2.6 Hz, 1H), 7.75 (d, J=8.5 Hz, 2H), 7.64 (d, J=8.5 Hz, 2H), 6.73-6.65 (m, 1H), 6.34-6.19 (m, 1H), 3.80 (s, 2H), 3.34 (s, 3H), 2.69 (s, 6H). LC-MS (ESI): m/z (M/M+2) 463/465.

Workup

  1. customThe resulting mixture was purged with N2 (3×)
  2. custombefore microwaved at 90° C. for 45 min
  3. customThe solvents were evaporated
  4. custompre-purified by column chromatography (0 to 10% MeOH in DCM)
  5. customfollowed by preparative HPLC purification (RP C18, 10 to 95% acetonitrile in water (0.2% NH3))

Sources & evidence

ORD record
ord-875ec3ab999c4e22923cf705b1767a98
Source dataset
uspto-grants-2013_02
Patent number
US08377946B1

Reaction notes

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