Dimethylformamide → HCID 71281072, 화합물

HRID 1045475노트

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HRID 1045475 반응식
[O:1]=[C:2]([CH3:17])[CH2:3][CH2:4][C:5]1[CH:6]=[CH:7][C:8]2[N:9]([C:11]([C:14]([OH:16])=O)=[CH:12][N:13]=2)[CH:10]=1.C(Cl)(=O)C(Cl)=O.CN(C)C=O.[NH2:29][C:30]1[CH:31]=[C:32]([C:37]2[N:41]=[C:40]([CH:42]3[CH2:45][N:44]([C:46]([O:48][CH3:49])=[O:47])[CH2:43]3)[O:39][N:38]=2)[CH:33]=[CH:34][C:35]=1[CH3:36]>ClCCl.N1C=CC=CC=1>[CH3:36][C:35]1[CH:34]=[CH:33][C:32]([C:37]2[N:41]=[C:40]([CH:42]3[CH2:43][N:44]([C:46]([O:48][CH3:49])=[O:47])[CH2:45]3)[O:39][N:38]=2)=[CH:31][C:30]=1[NH:29][C:14]([C:11]1[N:9]2[CH:10]=[C:5]([CH2:4][CH2:3][C:2](=[O:1])[CH3:17])[CH:6]=[CH:7][C:8]2=[N:13][CH:12]=1)=[O:16]

참가 물질

7

반응물 4

HCID 6228DimethylformamideHCID 65578Oxalyl chlorideHCID 71280499HCID 71280499, 화합물HCID 86677444Methyl 3-(3-(3-amino-4-methylphenyl)-1,2,4-oxadiazol-5-yl)azetidine-1-carboxylate

생성물 1

HCID 71281072HCID 71281072, 화합물

시약·촉매·용매 2

HCID 1049Pyridine용매HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

To a stirring suspension of 6-(3-oxobutyl)imidazo[1,2-a]pyridine-3-carboxylic acid (78) (50 mg, 0.215 mmol) in anhydrous dichloromethane (2 mL) at 0° C. under Argon was added dropwise oxalyl chloride (20 uL, 0.237 mmol). Then, a drop of anhydrous N,N-dimethylformamide was added and the reaction mixture was stirred at 0° C. for 1 hour. The solvent was concentrated and the crude solid was dried under vacuo. Next, methyl 3-(3-(3-amino-4-methylphenyl)-1,2,4-oxadiazol-5-yl)azetidine-1-carboxylate (31) (27 mg, 0.0796 mmol) and anhydrous pyridine (1 mL) were added to the acid chloride. The reaction was stirred to room temperature under Argon for 20 minutes. The crude product was purified by reverse phase preparative HPLC to give methyl 3-(3-(4-methyl-3-(6-(3-oxobutyl)imidazo[1,2-a]pyridine-3-carboxamido)phenyl)-1,2,4-oxadiazol-5-yl)azetidine-1-carboxylate (F65). 1H NMR (400 MHz, d6-DMSO) δ 10.02 (s, 1H), 9.31 (s, 1H), 8.55 (s, 1H), 8.10 (d, J=1.6 Hz, 1H), 7.83 (dd, J=2.0, 8.0 Hz, 1H), 7.73 (d, J=9.2 Hz, 1H), 7.50 (d, J=8.0 Hz, 1H), 7.46 (dd, J=1.6, 9.2 Hz, 1H), 4.39-4.34 (m, 2H), 4.31-4.25 (m, 1H), 4.22-4.18 (m, 2H), 3.59 (s, 3H), 2.85 (s, 4H), 2.37 (s, 3H), 2.10 (s, 3H). MS m/z 503.2 (M+1)+.

후처리

  1. concentrationThe solvent was concentrated
  2. customthe crude solid was dried under vacuo
  3. stirringThe reaction was stirred to room temperature under Argon for 20 minutes
  4. customThe crude product was purified by reverse phase preparative HPLC

출처 및 근거

ORD 기록
ord-6c621d8dc45a42b48606a2fe2e2365ef
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08569283B2

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