Hydrochloric Acid → (4E)-4-phenyl-4-[[4-[(5-phenylimidazo[1,2-a]pyridin-2-yl)methoxy]phenyl]methoxyimino]butanoic acid

HRID 584449노트

반응식

HRID 584449 반응식
[OH-].[Na+].[C:3]1([C:9]2[N:14]3[CH:15]=[C:16]([CH2:18][O:19][C:20]4[CH:41]=[CH:40][C:23]([CH2:24][O:25]/[N:26]=[C:27](/[C:34]5[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=5)\[CH2:28][CH2:29][C:30]([O:32]C)=[O:31])=[CH:22][CH:21]=4)[N:17]=[C:13]3[CH:12]=[CH:11][CH:10]=2)[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.CO.Cl>O1CCCC1>[C:3]1([C:9]2[N:14]3[CH:15]=[C:16]([CH2:18][O:19][C:20]4[CH:21]=[CH:22][C:23]([CH2:24][O:25]/[N:26]=[C:27](/[C:34]5[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=5)\[CH2:28][CH2:29][C:30]([OH:32])=[O:31])=[CH:40][CH:41]=4)[N:17]=[C:13]3[CH:12]=[CH:11][CH:10]=2)[CH:4]=[CH:5][CH:6]=[CH:7][CH:8]=1

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 22344624HCID 22344624, 화합물

생성물 1

HCID 22344572(4E)-4-phenyl-4-[[4-[(5-phenylimidazo[1,2-a]pyridin-2-yl)methoxy]phenyl]methoxyimino]butanoic acid수율 94%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

A 1N aqueous saturated solution of sodium hydroxide (5 ml) was added to a solution of methyl E-4-[4-(5-phenylimidazo[1,2-a]pyridin-2-ylmethoxy)benzyloxyimino]-4-phenylbutyrate (400 mg) in tetrahydrofuran (10 ml)-methanol (5 ml) and stirred at room temperature for 1 hour. 1N hydrochloric acid (5.5 ml) was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was recrystallized from ethyl acetate-hexane to obtain E-4-[4-(5-phenylimidazo[1,2-a]pyridin-2-ylmethoxy)benzyloxyimino]-4-phenylbutyric acid (365 mg, yield 94%) as colorless crystals. m.p. 160-161° C.

후처리

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe residue was recrystallized from ethyl acetate-hexane

출처 및 근거

ORD 기록
ord-60447faf058d41cd9cc4cc21491bfa1b
출처 데이터셋
uspto-grants-2005_08
특허 번호
US06924300B2

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