Hydrochloric Acid → 3-amino-8-(2-oxopyrrolidin-1-yl)-1-(thiophen-3-ylmethyl)-3,4-dihydroquinolin-2(1H)-one

HRID 1887727노트

반응식

HRID 1887727 반응식
[O:1]=[C:2]1[CH:11]([NH:12]C(=O)OC(C)(C)C)[CH2:10][C:9]2[C:4](=[C:5]([N:20]3[CH2:24][CH2:23][CH2:22][C:21]3=[O:25])[CH:6]=[CH:7][CH:8]=2)[N:3]1[CH2:26][C:27]1[CH:31]=[CH:30][S:29][CH:28]=1.Cl.[OH-].[Na+]>C(O)C>[NH2:12][CH:11]1[CH2:10][C:9]2[C:4](=[C:5]([N:20]3[CH2:24][CH2:23][CH2:22][C:21]3=[O:25])[CH:6]=[CH:7][CH:8]=2)[N:3]([CH2:26][C:27]2[CH:31]=[CH:30][S:29][CH:28]=2)[C:2]1=[O:1]

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 59620385Tert-butyl 2-oxo-8-(2-oxopyrrolidin-1-yl)-1-(thiophen-3-ylmethyl)-1,2,3,4-tetrahydroquinolin-3-ylcarbamate

생성물 1

HCID 596203303-amino-8-(2-oxopyrrolidin-1-yl)-1-(thiophen-3-ylmethyl)-3,4-dihydroquinolin-2(1H)-one

시약·촉매·용매 1

HCID 702Ethanol용매

반응 조건

온도
60 °C

실험 절차

tert-Butyl 2-oxo-8-(2-oxopyrrolidin-1-yl)-1-(thiophen-3-ylmethyl)-1,2,3,4-tetrahydroquinolin-3-ylcarbamate (399 g) was suspended in ethanol (2 L), and concentrated hydrochloric acid (555 mL) was added to the suspension, followed by stirring at 60° C. for 30 minutes. The reaction mixture was neutralized with 25% aqueous sodium hydroxide solution under cooling on ice. The resultant mixture was partitioned between chloroform and water, and the aqueous layer was extracted with chloroform. The organic layers were combined, and the combined organic layer was dried over sodium sulfate. The solvent was evaporated under reduced pressure, whereby the title compound (418 g) in a crude form was yielded, which was employed in the subsequent reaction step without performing further purification.

후처리

  1. temperatureunder cooling on ice
  2. customThe resultant mixture was partitioned between chloroform and water
  3. extractionthe aqueous layer was extracted with chloroform
  4. dry with materialthe combined organic layer was dried over sodium sulfate
  5. customThe solvent was evaporated under reduced pressure, whereby the title compound (418 g) in a crude form
  6. customwas yielded
  7. customwhich was employed in the subsequent reaction step
  8. custompurification

출처 및 근거

ORD 기록
ord-90ab23744172473ab323f6bdbac80e51
출처 데이터셋
uspto-grants-2013_08
특허 번호
US08501772B2

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