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

HRID 655766ノート

反応式

HRID 655766 の反応式
[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]

参加物

7

反応物 5

HCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 54237477Ethyl (3S,4R)-4-amino-3-ethoxypiperidine-1-carboxylate2 回HCID 594025744-chloro-3-cyano-5-methyl-1H-pyrrole-2-carboxylic acid2 回

生成物 1

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

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

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.

後処理

  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)

出典と根拠

ORDレコード
ord-814d39b06bed4570a280b9a8a9478c0e
出典データセット
uspto-grants-2011_12
特許番号
US08071605B2

反応ノート

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