Triethylamine → tert-Butyl 4-{[2-(ethoxyacetyl)hydrazino]carbonyl}piperidine-1-carboxylate

HRID 20279

반응식

HRID 20279 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([NH:16][NH2:17])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:18]([O:20][CH2:21][C:22](O)=[O:23])[CH3:19].Cl.CN(C)CCCN=C=NCC.O.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C>CN(C)C=O>[CH2:18]([O:20][CH2:21][C:22]([NH:17][NH:16][C:14]([CH:11]1[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])[CH2:9][CH2:10]1)=[O:15])=[O:23])[CH3:19]

참가 물질

7

반응물 5

HCID 8471TriethylamineHCID 12301Ethoxyacetic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 22713165tert-Butyl 4-(hydrazinecarbonyl)piperidine-1-carboxylate

생성물 1

HCID 59347451tert-Butyl 4-{[2-(ethoxyacetyl)hydrazino]carbonyl}piperidine-1-carboxylate

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

A mixture of 4-hydrazinocarbonyl-piperidine-1-carboxylic acid tert-butyl ester (WO 2000039125, prep 27) (3 g, 12.33 mmol), ethoxyacetic acid (1.28 mL, 13.56 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (2.6 g, 13.56 mmol), 1-hydroxybenzotriazole hydrate (1.83 g, 13.56 mmol) and triethylamine (2.1 mL, 14.8 mmol) in N,N-dimethylformamide (15 mL) was stirred at room temperature for 18 hours. The mixture was concentrated under reduced pressure and the residue was partitioned between ethyl acetate and aqueous sodium carbonate solution. The layers were separated, the organic phase was dried over MgSO4 and evaporated under reduced pressure to provide the title compound as an oil, that crystallised on standing.

후처리

  1. concentrationThe mixture was concentrated under reduced pressure
  2. customthe residue was partitioned between ethyl acetate and aqueous sodium carbonate solution
  3. customThe layers were separated
  4. dry with materialthe organic phase was dried over MgSO4
  5. customevaporated under reduced pressure

출처 및 근거

ORD 기록
ord-85f0b6c9feb84b83ad232f4f7c799308
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07745630B2

연결된 노트

불러오는 중…