Trifluoroacetic acid → 6-((5-Cyano-2-methoxyphenyl)amino)-8-((2,2,2-trifluoroethyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile

HRID 889460ノート

反応式

HRID 889460 の反応式
Cl[C:2]1[CH:3]=[C:4]([NH:13][CH2:14][C:15]([F:18])([F:17])[F:16])[C:5]2[N:6]([C:8]([C:11]#[N:12])=[CH:9][N:10]=2)[N:7]=1.[NH2:19][C:20]1[CH:21]=[C:22]([CH:25]=[CH:26][C:27]=1[O:28][CH3:29])[C:23]#[N:24].C(P(C(C)(C)C)C1(C)CC1(C1C=CC=CC=1)C1C=CC=CC=1)(C)(C)C.CC(C)([O-])C.[Na+].C(O)(C(F)(F)F)=O>C1(C)C=CC=CC=1.[CH2-]C=C.[CH2-]C=C.Cl[Pd+].Cl[Pd+].O>[C:23]([C:22]1[CH:25]=[CH:26][C:27]([O:28][CH3:29])=[C:20]([NH:19][C:2]2[CH:3]=[C:4]([NH:13][CH2:14][C:15]([F:18])([F:17])[F:16])[C:5]3[N:6]([C:8]([C:11]#[N:12])=[CH:9][N:10]=3)[N:7]=2)[CH:21]=1)#[N:24]

参加物

9

反応物 5

HCID 6422Trifluoroacetic acidHCID 21909131Di-tert-butyl(1-methyl-2,2-diphenylcyclopropyl)phosphaneHCID 224525573-Amino-4-methoxybenzonitrileHCID 23676156Sodium t-butoxideHCID 866413826-Chloro-8-((2,2,2-trifluoroethyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile

生成物 1

HCID 593138006-((5-Cyano-2-methoxyphenyl)amino)-8-((2,2,2-trifluoroethyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile収率 5.4%

試薬・触媒・溶媒 3

HCID 61538Palladium, di-mu-chlorobis(eta3-2-propenyl)di-触媒HCID 962Water溶媒HCID 1140Toluene溶媒

反応条件

温度
100 °C

実験手順

A mixture of 9A (100 mg, 0.36 mmol), 3-amino-4-methoxybenzonitrile (108 mg, 0.73 mmol) and di-tert-butyl(1-methyl-2,2-diphenylcyclopropyl)phosphine (25.6 mg, 0.073 mmol) in toluene (1 mL) was purged with nitrogen. Allylpalladium (II) chloride dimer (13.3 mg, 0.036 mmol) and sodium tert-butoxide (41.8 mg, 0.435 mmol) were added, and the reaction mixture was purged with nitrogen and heated at 100° C. After 20 minutes, the reaction mixture was cooled to room temperature, diluted with DCM, and filtered through CELITE®. The filtrate was concentrated under reduced pressure, dissolved in DMSO/methanol, and purified by reverse phase HPLC (PHENOMENEX® Luna Axia 5 micron 30×250 mm) 20% B (Solvent B=90% MeOH-10% H2O-0.1% TFA) to 100% B in (Solvent A=10% MeOH-90% H2O-0.1% TFA) in 15 min.) to obtain Example 9, (9.9 mg, 0.020 mmol, 5.4% yield) as a light yellow solid. HPLC: Rt=0.95 min. (BEH C18 2.1×50 mm, 1.7 u, 0 to 100 B in 1 min. with 0.5 min. hold time, flow rate=1 mL/min., detection at 254 nm, Solvent A: 100% water/0.1% TFA; Solvent B: 100% ACN1/0.1% TFA). MS (ES): m/z=388.3 [M+H]+. 1H NMR (500 MHz, DMSO-d6) δ ppm 8.76 (1H, d, J=1.94 Hz), 8.67 (1H, s), 8.23 (1H, s), 8.03-8.12 (1H, m), 7.41-7.55 (1H, m), 7.24 (1H, d, J=8.32 Hz), 6.75 (1H, s), 4.06-4.17 (2H, m), 4.00 (3H, s).

後処理

  1. customwas purged with nitrogen
  2. customthe reaction mixture was purged with nitrogen
  3. temperaturethe reaction mixture was cooled to room temperature
  4. additiondiluted with DCM
  5. filtrationfiltered through CELITE®
  6. concentrationThe filtrate was concentrated under reduced pressure
  7. dissolutiondissolved in DMSO/methanol
  8. custompurified by reverse phase HPLC (PHENOMENEX® Luna Axia 5 micron 30×250 mm) 20% B (Solvent B=90% MeOH-10% H2O-0.1% TFA) to 100% B in (Solvent A=10% MeOH-90% H2O-0.1% TFA) in 15 min.)
  9. customto obtain Example 9, (9.9 mg, 0.020 mmol, 5.4% yield) as a light yellow solid

出典と根拠

ORDレコード
ord-f41dadc0b40b45cfa21dd51eac0139c7
出典データセット
uspto-grants-2012_08
特許番号
US08252795B2

反応ノート

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