Water → 4-chloro-3-cyano-N-[(3S,4R)-3-ethoxypiperidin-4-yl]-5-methyl-1H-pyrrole-2-carboxamide

HRID 655767노트

반응식

HRID 655767 반응식
[Cl:1][C:2]1[C:3]([C:25]#[N:26])=[C:4]([C:8]([NH:10][C@@H:11]2[CH2:16][CH2:15][N:14](C(OCC)=O)[CH2:13][C@@H:12]2[O:22][CH2:23][CH3:24])=[O:9])[NH:5][C:6]=1[CH3:7].[OH-].[K+].O.NN.O>C(O)CO>[Cl:1][C:2]1[C:3]([C:25]#[N:26])=[C:4]([C:8]([NH:10][C@@H:11]2[CH2:16][CH2:15][NH:14][CH2:13][C@@H:12]2[O:22][CH2:23][CH3:24])=[O:9])[NH:5][C:6]=1[CH3:7]

참가 물질

6

반응물 4

HCID 962WaterHCID 14797Potassium HydroxideHCID 24654Hydrazine hydrate (1:1)HCID 59402508ethyl (3S,4R)-4-{[(4-chloro-3-cyano-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate2회

생성물 1

HCID 594024474-chloro-3-cyano-N-[(3S,4R)-3-ethoxypiperidin-4-yl]-5-methyl-1H-pyrrole-2-carboxamide수율 55%

시약·촉매·용매 1

HCID 174Ethylene Glycol용매

실험 절차

A solution of ethyl (3S,4R)-4-{[(4-chloro-3-cyano-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate (Intermediate 32, 1.5 g, 3.92 mmol), potassium hydroxide (1.54 g, 27.48 mmol), and hydrazine hydrate (1.38 mL, 27.48 mmol) in ethylene glycol (200 mL) was stirred for 60 h at 120° C. The reaction mixture was poured in to water (300 mL) and extracted with ethyl acetate (2×300 mL). The combined organic extracts were dried over anhydrous sodium sulphate, filtered, concentrated under vacuum to yield the crude product which was triturated with water (150 mL) to afford 4-chloro-3-cyano-N-[(3S,4R)-3-ethoxypiperidin-4-yl]-5-methyl-1H-pyrrole-2-carboxamide (670 mg, 55%) as solid.

후처리

  1. extractionextracted with ethyl acetate (2×300 mL)
  2. dry with materialThe combined organic extracts were dried over anhydrous sodium sulphate
  3. filtrationfiltered
  4. concentrationconcentrated under vacuum
  5. customto yield the crude product which
  6. customwas triturated with water (150 mL)

출처 및 근거

ORD 기록
ord-3302917e9ba04293833ead4aa176d621
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08071605B2

반응 노트

불러오는 중…