Triethylamine → [(E)-1-[3-[(7-fluoroquinolin-6-yl)-hydroxymethyl]imidazo[1,2-b]pyridazin-6-yl]ethylideneamino]urea

HRID 456082ノート

反応式

HRID 456082 の反応式
[F:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[CH:12]([OH:25])[C:13]1[N:17]2[N:18]=[C:19]([C:22](=O)[CH3:23])[CH:20]=[CH:21][C:16]2=[N:15][CH:14]=1.Cl.[NH2:27][NH:28][C:29]([NH2:31])=[O:30].C(N(CC)CC)C>CO>[F:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[CH:12]([OH:25])[C:13]1[N:17]2[N:18]=[C:19](/[C:22](=[N:27]/[NH:28][C:29]([NH2:31])=[O:30])/[CH3:23])[CH:20]=[CH:21][C:16]2=[N:15][CH:14]=1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 11236Semicarbazide hydrochlorideHCID 669270891-(3-((7-Fluoroquinolin-6-yl)(hydroxy)methyl)imidazo[1,2-b]pyridazin-6-yl)ethanone

生成物 1

HCID 71699884[(E)-1-[3-[(7-fluoroquinolin-6-yl)-hydroxymethyl]imidazo[1,2-b]pyridazin-6-yl]ethylideneamino]urea収率 47.1%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a solution of 1-(3-((7-fluoroquinolin-6-yl)(hydroxy)methyl)imidazo[1,2-b]pyridazin-6-yl)ethanone (100 mg, 0.27 mmol) in methanol (15 mL) was added semicarbazide hydrochloride (45 mg, 0.41 mmol). Triethyl amine was added dropwise to adjust the pH to 5-6. The reaction mixture was stirred at room temperature overnight. The precipitate was collected by filtration and dried over vacuum pump to afford 50 mg (yield: 47%) title compound as a white solid. 1H-NMR (400 MHz, DMSO-d6) δ ppm 9.68 (s, 1H), 8.89 (dd, 1H), 8.45 (d, 1H), 8.25 (m, 2H), 7.99 (d, 1H), 7.72 (d, 1H), 7.57 (s, 1H), 7.52 (q, 1H), 6.67 (b, 2H), 6.62 (s, 1H), 6.47 (b, 1H), 2.19 (s, 3H). LCMS (method A): [MH]+=394, tR=3.95 min.

後処理

  1. filtrationThe precipitate was collected by filtration
  2. customdried over vacuum pump

出典と根拠

ORDレコード
ord-bf399b70f4034a34ad6300e98ad17bc8
出典データセット
uspto-grants-2013_07
特許番号
US08497368B2

反応ノート

読み込み中…