Methanol → 3-[7-(benzyloxy)-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl]-4-hydroxy-1-(propylamino)quinolin-2(1H)-one

HRID 601349

반응식

HRID 601349 반응식
[CH2:1]([O:8][C:9]1[CH:36]=[CH:35][C:12]2[NH:13][C:14]([C:19]3[C:20](=[O:34])[N:21]([N:30]=[CH:31][CH2:32][CH3:33])[C:22]4[C:27]([C:28]=3[OH:29])=[CH:26][CH:25]=[CH:24][CH:23]=4)=[N:15][S:16](=[O:18])(=[O:17])[C:11]=2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CO.[BH4-].[Li+]>O1CCCC1.Cl>[CH2:1]([O:8][C:9]1[CH:36]=[CH:35][C:12]2[NH:13][C:14]([C:19]3[C:20](=[O:34])[N:21]([NH:30][CH2:31][CH2:32][CH3:33])[C:22]4[C:27]([C:28]=3[OH:29])=[CH:26][CH:25]=[CH:24][CH:23]=4)=[N:15][S:16](=[O:18])(=[O:17])[C:11]=2[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

6

반응물 3

HCID 887MethanolHCID 4148881Lithium borohydrideHCID 1363584163-[7-(benzyloxy)-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl]-4-hydroxy-1-[propylideneamino]quinolin-2(1H)-one

생성물 1

HCID 1363584153-[7-(benzyloxy)-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl]-4-hydroxy-1-(propylamino)quinolin-2(1H)-one수율 44%

시약·촉매·용매 2

HCID 313Hydrochloric Acid용매HCID 8028Tetrahydrofuran용매2회

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온도
25 °C

실험 절차

The product of Example 358A (0.045 g, 0.09 mmol) in tetrahydrofuran (2 mL) at 0° C. was treated with methanol (0.005 mL, 0.35 mmol), followed by dropwise addition of a 2.0 M solution of lithium borohydride in tetrahydrofuran (0.07 mL, 0.13 mmol), stirred at 25° C. for one hour, and diluted with 1 N hydrochloric acid. The resulting precipitate was filtered and dried. The solid was dissolved in tetrahydrofuran and absorbed onto silica gel by evaporating to dryness. The resulting silica was loaded onto a 2 g Alltech sep pack and eluted with dichloromethane to give the title compound (0.020 g, 44%). MS (ESI−) m/z 503 (M−H)−.

후처리

  1. filtrationThe resulting precipitate was filtered
  2. customdried
  3. dissolutionThe solid was dissolved in tetrahydrofuran
  4. customabsorbed onto silica gel
  5. customby evaporating to dryness
  6. washeluted with dichloromethane

출처 및 근거

ORD 기록
ord-3f0dad9a1c6c44828f8e1f8d6c1501b3
출처 데이터셋
uspto-grants-2011_03
특허 번호
US07902203B2

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