Hydroxylamine → Tert-butyl-4-({[4-(2-butynyloxy)phenyl]sulfanyl)methyl)-4-[(hydroxyamino)carbonyl]-1-piperidinecarboxylate

HRID 278334ノート

反応式

HRID 278334 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]([CH2:17][S:18][C:19]2[CH:24]=[CH:23][C:22]([O:25][CH2:26][C:27]#[C:28][CH3:29])=[CH:21][CH:20]=2)([C:14](O)=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH:30][N:31]1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.NO>CN(C=O)C.CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]([CH2:17][S:18][C:19]2[CH:24]=[CH:23][C:22]([O:25][CH2:26][C:27]#[C:28][CH3:29])=[CH:21][CH:20]=2)([C:14]([NH:31][OH:30])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

参加物

7

反応物 4

HCID 787HydroxylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 542579274-(4-But-2-ynyloxy-phenylsulfanylmethyl)-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester

生成物 1

HCID 23513813Tert-butyl-4-({[4-(2-butynyloxy)phenyl]sulfanyl)methyl)-4-[(hydroxyamino)carbonyl]-1-piperidinecarboxylate収率 36.2%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 0.204 g (0.49 mmol) of 4-(4-But-2-ynyloxy-phenylsulfanylmethyl)-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester, 0.079 g (0.58 mmol) of 1-hydroxybenzotriazole in 2.5 mL of DMF was added 0.112 g (0.84 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, and stirred at room temperature for 1 h. Then added 0.3 mL of 50% aqueous hydroxylamine and stirred for 18 h. The resulting mixture was diluted with EtOAc, washed with H2O, brine, dried over MgSO4, filtered and concentrated in vacuo. The residue was chromatographed on silica gel eluting with 1.5% MeOH/CH2Cl2 to provide 0.077 g (36%) of the desired product as a white solid. Electrospray Mass Spec: 435.2 (M+H)+

後処理

  1. stirringstirred for 18 h
  2. washwashed with H2O, brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was chromatographed on silica gel eluting with 1.5% MeOH/CH2Cl2

出典と根拠

ORDレコード
ord-e35fe10439134050beffe01bb91795e3
出典データセット
uspto-grants-2002_03
特許番号
US06358980B1

反応ノート

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