Isopropylamine → 4-Methyl-2-[2-(5-methyl-3-phenyl-isoxazol-4-yl)-ethyl]-thiazole-5-carboxylic acid iso-propylamide

HRID 1923489노트

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HRID 1923489 반응식
[CH:1]([NH2:4])([CH3:3])[CH3:2].C[Al](C)C.[CH3:9][C:10]1[N:11]=[C:12]([CH2:18][CH2:19][C:20]2[C:21]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[N:22][O:23][C:24]=2[CH3:25])[S:13][C:14]=1[C:15](O)=[O:16]>O1CCOCC1.C1(C)C=CC=CC=1>[CH:1]([NH:4][C:15]([C:14]1[S:13][C:12]([CH2:18][CH2:19][C:20]2[C:21]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[N:22][O:23][C:24]=2[CH3:25])=[N:11][C:10]=1[CH3:9])=[O:16])([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 6363IsopropylamineHCID 16682925TrimethylaluminumHCID 66643564HCID 66643564, 화합물

생성물 1

HCID 497824864-Methyl-2-[2-(5-methyl-3-phenyl-isoxazol-4-yl)-ethyl]-thiazole-5-carboxylic acid iso-propylamide수율 54.1%

시약·촉매·용매 2

HCID 1140Toluene용매HCID 312751,4-Dioxane용매2회

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온도
90 °C

실험 절차

To a stirred solution of isopropylamine (216 mg, 3.65 mmol) in dioxane (4 mL) under argon and at room temperature was added trimethylaluminium (1.83 mL of a 2M solution in toluene, 3.7 mmol). After 1 h, a solution of 4-methyl-2-[2-(5-methyl-3-phenyl-isoxazol-4-yl)-ethyl]-thiazole-5-carboxylic acid (300 mg, 0.91 mmol) in dioxane (4 mL) was added and the reaction mixture warmed to 90° C. After 4 h, the reaction mixture was cooled, quenched with ice water and extracted with dichloromethane. The combined extracts were washed with Seignette's salt solution then dried, filtered, and concentrated. Purification by chromatography (silica, 0 to 10% methanol in dichloromethane) gave the title compound (182 mg, 54%) as a light yellow gum. MS: m/e=370.1 [M+H]+.

후처리

  1. waitAfter 4 h
  2. temperaturethe reaction mixture was cooled
  3. customquenched with ice water
  4. extractionextracted with dichloromethane
  5. washThe combined extracts were washed with Seignette's salt solution
  6. customthen dried
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customPurification by chromatography (silica, 0 to 10% methanol in dichloromethane)

출처 및 근거

ORD 기록
ord-bf483c2a34884c1c97c89b3607099cf5
출처 데이터셋
uspto-grants-2012_05
특허 번호
US08178522B2

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