(1S,2R)-Cyclohexane-1,2-diamine, N1-BOC protected → tert-butyl (1S,2R)-2-(6-carbamoyl-5-(6-ethoxypyridin-2-ylamino)pyridazin-3-ylamino)cyclohexylcarbamate

HRID 1396431ノート

反応式

HRID 1396431 の反応式
Cl[C:2]1[N:7]=[N:6][C:5]([C:8]([NH2:10])=[O:9])=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH2:19][CH3:20])[N:13]=2)[CH:3]=1.[NH2:21][C@@H:22]1[CH2:27][CH2:26][CH2:25][CH2:24][C@@H:23]1[NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32]>CN1C(=O)CCC1>[C:8]([C:5]1[N:6]=[N:7][C:2]([NH:21][C@@H:22]2[CH2:27][CH2:26][CH2:25][CH2:24][C@@H:23]2[NH:28][C:29](=[O:35])[O:30][C:31]([CH3:33])([CH3:32])[CH3:34])=[CH:3][C:4]=1[NH:11][C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH2:19][CH3:20])[N:13]=1)(=[O:9])[NH2:10]

参加物

4

反応物 2

HCID 1514389(1S,2R)-Cyclohexane-1,2-diamine, N1-BOC protected2 回HCID 866897756-Chloro-4-(6-ethoxypyridin-2-ylamino)pyridazine-3-carboxamide

生成物 1

HCID 86689776tert-butyl (1S,2R)-2-(6-carbamoyl-5-(6-ethoxypyridin-2-ylamino)pyridazin-3-ylamino)cyclohexylcarbamate収率 46%

試薬・触媒・溶媒 1

HCID 13387N-methyl-2-pyrrolidone溶媒

反応条件

温度
140 °C

実験手順

6-Chloro-4-(6-ethoxypyridin-2-ylamino)pyridazine-3-carboxamide (33 mg, 112 μmol) and tert-butyl (1S,2R)-2-aminocyclohexylcarbamate (50 mg, 233 μmol) were combined in NMP (2 mL) and stirred at 140° C. for 48 h. A second portion of tert-butyl (1S,2R)-2-aminocyclohexylcarbamate (50 mg, 233 μmol) was added and the reaction was stirred at 140° C. for 96 h, then cooled to room temperature and concentrated in vacuo. The residue obtained was partitioned between water and EtOAc. The aqueous layer was extracted with EtOAc and the organics were combined and washed with brine. The solvent was removed in vacuo to give an orange foam. The foam was concentrated onto silica and purified by chromatography (4 g RediSep Gold, 0 to 5% of a mixture of MeOH containing 0.5% NH4OH in dichloromethane, 20 min) to give tert-butyl (1S,2R)-2-(6-carbamoyl-5-(6-ethoxypyridin-2-ylamino)pyridazin-3-ylamino)cyclohexylcarbamate (32.3 mg, 51.4 μmol, 46%) containing some dichloromethane impurity. This was used directly without further purification. MS (EI/CI) m/z: 372.3 [M+H].

後処理

  1. stirringthe reaction was stirred at 140° C. for 96 h
  2. temperaturecooled to room temperature
  3. concentrationconcentrated in vacuo
  4. customThe residue obtained
  5. customwas partitioned between water and EtOAc
  6. extractionThe aqueous layer was extracted with EtOAc
  7. washwashed with brine
  8. customThe solvent was removed in vacuo
  9. customto give an orange foam
  10. concentrationThe foam was concentrated onto silica
  11. custompurified by chromatography (4 g RediSep Gold, 0 to 5% of a mixture of MeOH containing 0.5% NH4OH in dichloromethane, 20 min)

出典と根拠

ORDレコード
ord-65d1b1de0a2a4cbf8cb97f3074410d48
出典データセット
uspto-grants-2014_12
特許番号
US08901124B2

反応ノート

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