Acetonitrile → 4-(3,3-dimethylbut-1-ynyl)-N-(4-(7-methoxy-1,5-naphthyridin-4-yloxy)phenyl)phthalazin-1-amine

HRID 503541Notes

Reaction equation

HRID 503541 reaction equation
Cl[C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][C:20]3[C:29]4[C:24](=[CH:25][C:26]([O:30][CH3:31])=[CH:27][N:28]=4)[N:23]=[CH:22][CH:21]=3)=[CH:15][CH:14]=2)=[N:4][N:3]=1.[CH3:32][C:33]([CH3:37])([CH3:36])[C:34]#[CH:35].C(#N)C>C(Cl)Cl.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[CH3:32][C:33]([CH3:37])([CH3:36])[C:34]#[C:35][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][C:20]3[C:29]4[C:24](=[CH:25][C:26]([O:30][CH3:31])=[CH:27][N:28]=4)[N:23]=[CH:22][CH:21]=3)=[CH:15][CH:14]=2)=[N:4][N:3]=1

Participants

7

Reactant 3

HCID 6342AcetonitrileHCID 135123,3-Dimethyl-1-butyneHCID 866286654-chloro-N-(4-(7-methoxy-1,5-naphthyridin-4-yloxy)phenyl)phthalazin-1-amine

Product 1

HCID 673166724-(3,3-dimethylbut-1-ynyl)-N-(4-(7-methoxy-1,5-naphthyridin-4-yloxy)phenyl)phthalazin-1-amine

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6344DichloromethaneSolvent

Conditions

Temperature
90 °C

Procedure

A resealable pressure bottle, purged with argon, was charged with 4-chloro-N-(4-(7-methoxy-1,5-naphthyridin-4-yloxy)phenyl)phthalazin-1-amine (120 mg, 0.28 mmol), bis(triphenylphosphine)palladium(ii) chloride (24 mg, 0.03 mmol), copper(I) iodide (6.4 mg, 0.03 mmol), 3,3-dimethyl-1-butyne (86 μl, 0.70 mmol), and ACN (2.8 mL, 0.1 M). To the mixture was added TEA (0.785 mL, 5.6 mmol). The reaction vessel was sealed and the mixture was heated to 90° C. for 16 h. The reaction mixture was cooled to RT, diluted with DCM and filtered over Celite. The filtrate was concentrated under reduced pressure to give a brown residue, which was purified by Gilson HPLC {5-65% (0.1% TFA in CH3CN) in H2O over 20 min}. The product-containing fractions were combined, basified by addition of aq. NaHCO3 and extracted with DCM. The organic portion was dried with Na2SO4, filtered, and concentrated to afford pure 4-(3,3-dimethylbut-1-ynyl)-N-(4-(7-methoxy-1,5-naphthyridin-4-yloxy)phenyl)phthalazin-1-amine MS [M+H]=476.1 Calc'd for C29H25N5O2: 475.5.

Workup

  1. customA resealable pressure bottle, purged with argon
  2. customThe reaction vessel was sealed
  3. temperatureThe reaction mixture was cooled to RT
  4. filtrationfiltered over Celite
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customto give a brown residue, which
  7. customwas purified by Gilson HPLC {5-65% (0.1% TFA in CH3CN) in H2O over 20 min}
  8. additionbasified by addition of aq. NaHCO3
  9. extractionextracted with DCM
  10. dry with materialThe organic portion was dried with Na2SO4
  11. filtrationfiltered
  12. concentrationconcentrated

Sources & evidence

ORD record
ord-6714576a8b0d4b3c9e34dc5fb5bab280
Source dataset
uspto-grants-2010_08
Patent number
US07776857B2

Reaction notes

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