4-Methylmorpholine → ethyl (3S,4R)-4-{[(4-chloro-3-cyano-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate

HRID 655766노트

반응식

HRID 655766 반응식
[Cl:1][C:2]1[C:3]([C:11]#[N:12])=[C:4]([C:8]([OH:10])=O)[NH:5][C:6]=1[CH3:7].[NH2:13][C@@H:14]1[CH2:19][CH2:18][N:17]([C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH2:16][C@@H:15]1[O:25][CH2:26][CH3:27].C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1.CCN=C=NCCCN(C)C.Cl>ClCCl>[Cl:1][C:2]1[C:3]([C:11]#[N:12])=[C:4]([C:8]([NH:13][C@@H:14]2[CH2:19][CH2:18][N:17]([C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH2:16][C@@H:15]2[O:25][CH2:26][CH3:27])=[O:10])[NH:5][C:6]=1[CH3:7]

참가 물질

7

반응물 5

HCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 54237477Ethyl (3S,4R)-4-amino-3-ethoxypiperidine-1-carboxylate2회HCID 594025744-chloro-3-cyano-5-methyl-1H-pyrrole-2-carboxylic acid2회

생성물 1

HCID 59402508ethyl (3S,4R)-4-{[(4-chloro-3-cyano-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate수율 71%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 4-chloro-3-cyano-5-methyl-1H-pyrrole-2-carboxylic acid (Intermediate 16, 1.01 g, 5.55 mmol) and ethyl (3S,4R)-4-amino-3-ethoxypiperidine-1-carboxylate (Intermediate 24, 1.2 g, 5.55 mmol) in dichloromethane (480 mL) were added HOBt (850 mg, 5.55 mmol) and N-methyl morpholine (1.82 mL, 16.66 mmol). The reaction mixture was stirred for 1 h at room temperature and EDC HCl (1.9 g, 9.99 mmol) was added. The resulting reaction mixture was stirred at room temperature overnight. The reaction mixture was quenched with 2N hydrochloric acid (120 mL). The organic layer was washed with sodium bicarbonate (150 mL), water (150 mL) and brine, dried over anhydrous sodium sulphate, filtered, concentrated under vacuum. Purification by flash column chromatography (silica, 35% ethylacetate in pet ether) afforded ethyl (3S,4R)-4-{[(4-chloro-3-cyano-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate 1.5 g (71%) as solid.

후처리

  1. customThe resulting reaction mixture
  2. stirringwas stirred at room temperature overnight
  3. customThe reaction mixture was quenched with 2N hydrochloric acid (120 mL)
  4. washThe organic layer was washed with sodium bicarbonate (150 mL), water (150 mL) and brine
  5. dry with materialdried over anhydrous sodium sulphate
  6. filtrationfiltered
  7. concentrationconcentrated under vacuum
  8. customPurification by flash column chromatography (silica, 35% ethylacetate in pet ether)

출처 및 근거

ORD 기록
ord-814d39b06bed4570a280b9a8a9478c0e
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08071605B2

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