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Carbamide Peroxide → 4-((1-(tert-butoxycarbonyl)-4-carbamoylpiperidin-4-yl)methyl)-1-tert-butyl-1H-pyrazole-3-carboxylic acid

HRID 711038
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HRID 711038 반응식
[C:1]([N:5]1[CH:9]=[C:8]([CH2:10][C:11]2([C:24]#[N:25])[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][CH2:12]2)[C:7]([C:26]([O:28]CC)=[O:27])=[N:6]1)([CH3:4])([CH3:3])[CH3:2].NC(N)=[O:33].OO>CO.[OH-].[Na+]>[C:20]([O:19][C:17]([N:14]1[CH2:15][CH2:16][C:11]([CH2:10][C:8]2[C:7]([C:26]([OH:28])=[O:27])=[N:6][N:5]([C:1]([CH3:3])([CH3:4])[CH3:2])[CH:9]=2)([C:24](=[O:33])[NH2:25])[CH2:12][CH2:13]1)=[O:18])([CH3:23])([CH3:22])[CH3:21]
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참가 물질

5

반응물 2

HCID 31294Carbamide PeroxideHCID 67491622tert-butyl 4-((1-tert-butyl-3-(ethoxycarbonyl)-1H-pyrazol-4-yl)methyl)-4-cyanopiperidine-1-carboxylate

생성물 1

HCID 674914864-((1-(tert-butoxycarbonyl)-4-carbamoylpiperidin-4-yl)methyl)-1-tert-butyl-1H-pyrazole-3-carboxylic acid수율 93.9%

시약·촉매·용매 2

HCID 887Methanol용매HCID 14798
Sodium Hydroxide
용매

실험 절차

To a 0° C. solution of tert-butyl 4-((1-tert-butyl-3-(ethoxycarbonyl)-1H-pyrazol-4-yl)methyl)-4-cyanopiperidine-1-carboxylate (455 mg, 1.09 mmol) in methanol (11 mL) was added a solution of urea-hydrogen peroxide (1.05 g, 10.9 mmol) in 1 M aqueous sodium hydroxide (10.9 mL), dropwise. After stirring for 18 hours at room temperature, volatiles were removed under reduced pressure and the resultant slurry was taken up in water (50 mL), acidified with 2 N aqueous hydrochloric acid and extracted with ethyl acetate (2×50 mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated to yield 4-((1-(tert-butoxycarbonyl)-4-carbamoylpiperidin-4-yl)methyl)-1-tert-butyl-1H-pyrazole-3-carboxylic acid (418 mg) as a colorless solid. −APCI (M−H) 407.3; 1H NMR (400 MHz, DMSO-d6, δ): 12.33 (br. s., 1H), 7.47 (s, 1H), 7.11 (br. s., 1H), 6.99 (s, 1H), 3.59 (d, J=13.3 Hz, 2H), 2.89 (s, 2H), 2.77 (m, 2H), 1.84 (m, 2H), 1.44 (s, 9H), 1.31 (s, 9H), 1.16 (m, 2H).

후처리

  1. customvolatiles were removed under reduced pressure
  2. extractionextracted with ethyl acetate (2×50 mL)
  3. dry with materialThe combined organic extracts were dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-dc2bd6547580474db2cbfc80410c596a
출처 데이터셋
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09181252B2

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