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4-Methylmorpholine → 1-O-[(Z)-(1-amino-2-pyridin-4-ylethylidene)amino] 4-O-tert-butyl (2R)-2-(3-cyclohexylpropyl)butanedioate

HRID 2183063
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HRID 2183063 반응식
[C:1]([O:5][C:6](=[O:21])[CH2:7][C@@H:8]([CH2:12][CH2:13][CH2:14][CH:15]1[CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]1)[C:9]([OH:11])=[O:10])([CH3:4])([CH3:3])[CH3:2].Cl.CN(C)CCCN=C=NCC.CN1CCOCC1.O.ON1C2C=CC=CC=2N=N1.O/[N:53]=[C:54](\[NH2:62])/[CH2:55][C:56]1[CH:61]=[CH:60][N:59]=[CH:58][CH:57]=1>ClCCl.O>[NH2:62]/[C:54](=[N:53]\[O:10][C:9]([C@H:8]([CH2:12][CH2:13][CH2:14][CH:15]1[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20]1)[CH2:7][C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:21])=[O:11])/[CH2:55][C:56]1[CH:61]=[CH:60][N:59]=[CH:58][CH:57]=1
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참가 물질

8

반응물 5

HCID 79724-Methylmorpholine2회HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 9835906(2R)-2-[2-(tert-butoxy)-2-oxoethyl]-5-cyclohexylpentanoic acidHCID 24688407N'-hydroxy-2-pyridin-4-ylethanimidamide

생성물 1

HCID 16749006
1-O-[(Z)-(1-amino-2-pyridin-4-ylethylidene)amino] 4-O-tert-butyl (2R)-2-(3-cyclohexylpropyl)butanedioate
수율 116.6%

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매

실험 절차

A solution of (2R)-2-(2-tert-butoxy-2-oxoethyl)-5-cyclohexylpentanoic acid (Preparation 1) (500 mg, 1.67 mmol) in dichloromethane (20 ml) was treated with 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (354 mg, 1.85 mmol), N-methylmorpholine (203 μl, 1.85 mmol) and 1-hydroxybenzotriazole hydrate (227 mg, 1.67 mmol). (1Z)-N′-hydroxy-2-(4-pyridinyl)ethanimidamide (WO 9600720) (374 mg, 1.67 mmol) followed by N-methylmorpholine (369 μl, 3.34 mmol) were added to the reaction mixture which was stirred at room temperature for 18 hours. The reaction mixture was diluted with water (10 ml) and stirred for 20 minutes. The layers were separated via a 5 micron filter cartridge. The organic solvent was removed under reduced pressure to afford the title compound as a yellow oil (840 mg). This was used without further purification in the following step.

후처리

  1. additionwere added to the reaction mixture which
  2. stirringstirred for 20 minutes
  3. customThe layers were separated via a 5 micron
  4. filtrationfilter cartridge
  5. customThe organic solvent was removed under reduced pressure

출처 및 근거

ORD 기록
ord-80dea7f7c8e7444b96635a6b2283b6ac
출처 데이터셋
uspto-grants-2005_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06897306B2

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