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2-Aminoadamantane hydrochloride → 1-tert-butyl-5-trifluoromethyl-1H-pyrazole-4-carboxylic acid adamantan-2-ylamide

HRID 12832
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HRID 12832 반응식
[C:1]([N:5]1[C:9]([C:10]([F:13])([F:12])[F:11])=[C:8]([C:14]([OH:16])=O)[CH:7]=[N:6]1)([CH3:4])([CH3:3])[CH3:2].CCN(C(C)C)C(C)C.[B-](F)(F)(F)F.CN(C(ON1C(=O)CCC1=O)=[N+](C)C)C.Cl.[NH2:47][CH:48]1[CH:55]2[CH2:56][CH:51]3[CH2:52][CH:53]([CH2:57][CH:49]1[CH2:50]3)[CH2:54]2>ClCCl.CN(C=O)C.O>[CH:49]12[CH2:57][CH:53]3[CH2:52][CH:51]([CH2:56][CH:55]([CH2:54]3)[CH:48]1[NH:47][C:14]([C:8]1[CH:7]=[N:6][N:5]([C:1]([CH3:2])([CH3:3])[CH3:4])[C:9]=1[C:10]([F:11])([F:12])[F:13])=[O:16])[CH2:50]2
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참가 물질

8

반응물 4

HCID 253312-Aminoadamantane hydrochlorideHCID 81531DiisopropylethylamineHCID 14820391-tert-Butyl-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid2회HCID 98575222-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborate

생성물 1

HCID 250135441-tert-butyl-5-trifluoromethyl-1H-pyrazole-4-carboxylic acid adamantan-2-ylamide
수율 65%

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 6344Dichloromethane용매

실험 절차

tert-Butyl-5-trifluoromethyl-1H-pyrazole-4-carboxylic acid (Intermediate 7, 61 mg, 0.26 mmol) was dissolved in a mixture of dry dichloromethane (3.2 mL) and dry DMF (0.8 mL). DIPEA (0.23 mL, 1.3 mmol) and TSTU (93 mg, 0.28 mmol) were added to the above mixture. After the mixture was stirred for 1 h, the appearance of active ester was detected by LC-MS. Then 2-aminoadamantane hydrochloride (58 mg, 0.31 mmol) was added. After another 2 hours water was added and the organic layer was separated. The aqueous layer was extracted twice with dichloromethane. The combined organic layers were dried under vacuum and purified by C-18 reversed phase HPLC with a gradient of 10-100% acetonitrile/water to give 1-tert-butyl-5-trifluoromethyl-1H-pyrazole-4-carboxylic acid adamantan-2-ylamide (62 mg, 65%). Mass spectrum: m/z: 370.2 (M+1).

후처리

  1. customthe organic layer was separated
  2. extractionThe aqueous layer was extracted twice with dichloromethane
  3. customThe combined organic layers were dried under vacuum
  4. custompurified by C-18

출처 및 근거

ORD 기록
ord-d53e24288b474cab86af0923b73f4cca
출처 데이터셋
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07728029B2

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