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Sodium borohydride → 1-(3-(6-tert-butyl-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-3-(tritylamino)-1H-pyrazole-4-carbonitrile

HRID 1025650
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HRID 1025650 반응식
[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:11](=[O:15])[N:10]([C:16]1[C:17]([CH:49]=[O:50])=[C:18]([N:22]3[CH:26]=[C:25]([C:27]#[N:28])[C:24]([NH:29][C:30]([C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)([C:37]4[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=4)[C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)=[N:23]3)[CH:19]=[CH:20][CH:21]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+]>C(Cl)Cl.CO>[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:11](=[O:15])[N:10]([C:16]1[C:17]([CH2:49][OH:50])=[C:18]([N:22]3[CH:26]=[C:25]([C:27]#[N:28])[C:24]([NH:29][C:30]([C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=4)([C:37]4[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=4)[C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)=[N:23]3)[CH:19]=[CH:20][CH:21]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:2])[CH3:3]
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참가 물질

5

반응물 2

HCID 4311764Sodium borohydrideHCID 866737261-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-formyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitril

생성물 1

HCID 710084231-(3-(6-tert-butyl-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-3-(tritylamino)-1H-pyrazole-4-carbonitrile수율 76.1%

시약·촉매·용매 2

HCID 887Methanol용매
HCID 6344
Dichloromethane
용매

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온도
0 °C

실험 절차

To a solution of 1-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-formyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitril (632 mg, 0.965 mmol) in methylene chloride (20 mL) and methanol (10 mL), at 0° C. was added sodium borohydride (37 mg, 0.965 mmol). The resulting turbid reaction mixture was stirred at 0° C. for 5 minutes and then allowed to stir at room temperature for 10 minutes. The reaction was then judged to be complete by TLC. The volatiles removed in vacuo and the crude product was bound to silica gel and purified over a 40 g silica gel cartridge eluting the column with a 20-50% EtOAc/hexanes gradient to give 1-[3-(6-tert-Butyl-1-oxo-1H-phthalazin-2-yl)-2-hydroxymethyl-phenyl]-3-(trityl-amino)-1H-pyrazole-4-carbonitrile (482 mg, 76%).

후처리

  1. customThe resulting turbid reaction mixture
  2. stirringto stir at room temperature for 10 minutes
  3. customThe volatiles removed in vacuo
  4. custompurified over a 40 g silica gel cartridge
  5. washeluting the column with a 20-50% EtOAc/hexanes gradient

출처 및 근거

ORD 기록
ord-d3a42d0dae894ee49b35f3e67e9d390e
출처 데이터셋
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08729078B2

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