Trifluoroacetic acid → (3S)-3-amino-1-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]piperidin-2-one

HRID 57934노트

반응식

HRID 57934 반응식
[CH3:1][C:2]1[N:7]=[C:6]([C:8]2[N:13]=[CH:12][C:11]3[CH:14]=[N:15][N:16]([C:17]4[N:22]=[C:21]([N:23]5[CH2:28][CH2:27][CH2:26][C@H:25]([NH:29]C(=O)OC(C)(C)C)[C:24]5=[O:37])[CH:20]=[CH:19][CH:18]=4)[C:10]=3[CH:9]=2)[CH:5]=[N:4][CH:3]=1.FC(F)(F)C(O)=O>ClCCl>[NH2:29][C@H:25]1[CH2:26][CH2:27][CH2:28][N:23]([C:21]2[CH:20]=[CH:19][CH:18]=[C:17]([N:16]3[C:10]4[CH:9]=[C:8]([C:6]5[CH:5]=[N:4][CH:3]=[C:2]([CH3:1])[N:7]=5)[N:13]=[CH:12][C:11]=4[CH:14]=[N:15]3)[N:22]=2)[C:24]1=[O:37]

참가 물질

4

반응물 2

HCID 6422Trifluoroacetic acidHCID 86707119tert-butyl N-[(3S)-1-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-2-oxo-3-piperidyl]carbamate

생성물 1

HCID 72714481(3S)-3-amino-1-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]piperidin-2-one수율 39.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of tert-butyl N-[(3S)-1-[6-[6-(6-methylpyrazin-2-yl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-2-oxo-3-piperidyl]carbamate (140 mg, 0.280 mmol) in dichloromethane 4.0 ml and trifluoroacetic acid (0.80 ml, 10 mmol) was stirred at RT 3 h. The reaction was concentrated and diluted with water then extracted with EtOAc. The aqueous layer was basified with 1M NaOH to pH 10 then extracted with EtOAc. The organic layers was dried with sodium sulfate, filtered, and concentrated in vacuum. The crude product was submitted for reverse phase HPLC to give 225 (44 mg, 39% yield). MS (ESI) m/z: 401.1. 1H NMR (400 MHz, DMSO) δ 9.60 (s, 1H), 9.47 (s, 1H), 9.33 (s, 1H), 8.72 (s, 1H), 8.64 (s, 1H), 8.05 (t, J=8.1 Hz, 1H), 7.82 (d, J=8.0 Hz, 1H), 7.74 (d, J=8.1 Hz, 1H), 4.46-4.33 (m, 1H), 4.14-4.02 (m, 1H), 3.58 (dd, J=10.8, 6.4 Hz, 1H), 2.65 (s, 3H), 2.24 (dt, J=11.4, 5.3 Hz, 1H), 2.19-2.00 (m, 2H), 1.77 (ddd, J=23.0, 10.6, 5.1 Hz, 1H).

후처리

  1. concentrationThe reaction was concentrated
  2. additiondiluted with water
  3. extractionthen extracted with EtOAc
  4. extractionthen extracted with EtOAc
  5. dry with materialThe organic layers was dried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuum

출처 및 근거

ORD 기록
ord-faccf07d6c8a40169f83e72ba6a327c5
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09434725B2

반응 노트

불러오는 중…