1-Hydroxybenzotriazole → rac-{1-[({7-[(2,6-Difluorobenzyl)oxy]-2-methylpyrazolo[1,5-a]pyridin-3-yl}carbonyl)amino]-2-methylpentan-2-yl}carbamic Acid tert-butyl Ester

HRID 1486297ノート

反応式

HRID 1486297 の反応式
[F:1][C:2]1[CH:22]=[CH:21][CH:20]=[C:19]([F:23])[C:3]=1[CH2:4][O:5][C:6]1[N:11]2[N:12]=[C:13]([CH3:18])[C:14]([C:15]([OH:17])=O)=[C:10]2[CH:9]=[CH:8][CH:7]=1.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.[C:46]([O:50][C:51](=[O:60])[NH:52][C:53]([CH3:59])([CH2:56][CH2:57][CH3:58])[CH2:54][NH2:55])([CH3:49])([CH3:48])[CH3:47].C(N(CC)C(C)C)(C)C>O1CCCC1>[C:46]([O:50][C:51](=[O:60])[NH:52][C:53]([CH3:59])([CH2:56][CH2:57][CH3:58])[CH2:54][NH:55][C:15]([C:14]1[C:13]([CH3:18])=[N:12][N:11]2[C:6]([O:5][CH2:4][C:3]3[C:2]([F:1])=[CH:22][CH:21]=[CH:20][C:19]=3[F:23])=[CH:7][CH:8]=[CH:9][C:10]=12)=[O:17])([CH3:49])([CH3:48])[CH3:47]

参加物

7

反応物 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 84723920rac-tert-Butyl (1-amino-2-methylpentan-2-yl)carbamateHCID 1178595867-[(2,6-Difluorobenzyl)oxy]-2-methylpyrazolo[1,5-a]pyridine-3-carboxylic Acid

生成物 1

HCID 121434576rac-{1-[({7-[(2,6-Difluorobenzyl)oxy]-2-methylpyrazolo[1,5-a]pyridin-3-yl}carbonyl)amino]-2-methylpentan-2-yl}carbamic Acid tert-butyl Ester

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A solution of 100 mg (0.19 mmol, 61% pure) of 7-[(2,6-difluorobenzyl)oxy]-2-methylpyrazolo[1,5-a]pyridine-3-carboxylic acid from Example 130A in 4 ml of tetrahydrofuran was admixed with 39.1 mg (0.287 mmol) of 1-hydroxybenzotriazole and 74.3 mg (0.287 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride. The resulting solution was stirred at room temperature for 15 min, and then 62.2 mg (0.287 mmol) of rac-(1-amino-2-methylpentan-2-yl)carbamic acid tert-butyl ester from Example 152A were added, followed by 0.1 ml (0.575 mmol) of N,N-diisopropylethylamine After the addition, the mixture was stirred at room temperature for a further 15 h. The solvent was drawn off under reduced pressure and the residue was partitioned between dichloromethane (10 ml) and water (10 ml). The organic phase was removed and washed with water and saturated aqueous sodium chloride solution, dried with a phase separation cartridge and concentrated under reduced pressure, which gave 45 mg (24% of theory, 53% pure) of the target compound.

後処理

  1. additionAfter the addition
  2. stirringthe mixture was stirred at room temperature for a further 15 h
  3. customthe residue was partitioned between dichloromethane (10 ml) and water (10 ml)
  4. customThe organic phase was removed
  5. washwashed with water and saturated aqueous sodium chloride solution
  6. customdried with a phase separation cartridge
  7. concentrationconcentrated under reduced pressure, which
  8. customgave 45 mg (24% of theory, 53% pure) of the target compound

出典と根拠

ORDレコード
ord-459c0a2febc7489791175589b636213e
出典データセット
uspto-grants-2016_08
特許番号
US09422285B2

反応ノート

読み込み中…