Potassium Carbonate → {(S)-1-[3-(2-Methoxy-pyridin-3-yl)-imidazo[1,2-b]pyridazin-6-yl]-pyrrolidin-3-yl}-methyl-carbamic acid isopropyl ester

HRID 870773노트

반응식

HRID 870773 반응식
[CH:1]([O:4][C:5](=[O:23])[N:6]([C@H:8]1[CH2:12][CH2:11][N:10]([C:13]2[CH:14]=[CH:15][C:16]3[N:17]([C:19](Br)=[CH:20][N:21]=3)[N:18]=2)[CH2:9]1)[CH3:7])([CH3:3])[CH3:2].[CH3:24][O:25][C:26]1[C:31](B(O)O)=[CH:30][CH:29]=[CH:28][N:27]=1.C([O-])([O-])=O.[K+].[K+]>CC#N.O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH:1]([O:4][C:5](=[O:23])[N:6]([C@H:8]1[CH2:12][CH2:11][N:10]([C:13]2[CH:14]=[CH:15][C:16]3[N:17]([C:19]([C:31]4[C:26]([O:25][CH3:24])=[N:27][CH:28]=[CH:29][CH:30]=4)=[CH:20][N:21]=3)[N:18]=2)[CH2:9]1)[CH3:7])([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 2762709(2-Methoxypyridin-3-yl)boronic acidHCID 86696483(S)-isopropyl (1-(3-bromoimidazo[1,2-b]pyridazin-6-yl)pyrrolidin-3-yl)(methyl)carbamate

생성물 1

HCID 71721711{(S)-1-[3-(2-Methoxy-pyridin-3-yl)-imidazo[1,2-b]pyridazin-6-yl]-pyrrolidin-3-yl}-methyl-carbamic acid isopropyl ester수율 87.4%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 18373917Acetonitrile--water (1/1)용매

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온도
150 °C

실험 절차

A mixture of [(S)-1-(3-bromo-imidazo[1,2-b]pyridazin-6-yl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester (88 mg, 0.23 mmol), 2-methoxypyridine-3-boronic acid (46 mg, 0.3 mmol), K2CO3 (95 mg, 0.69 mmol) and dichlorobis(triphenylphosphine)palladium(II) (8.4 mg, 0.012 mmol) in MeCN/water (3.2 ml/0.8 ml) was heated in a microwave at 150° C. for 15 min. The water layer was removed and the organic layer was diluted with MeCN and filtered. The filtrate was subjected to preparative HPLC to give the titled compound (82.5 mg). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.29 (d, J=6.06 Hz, 6H) 2.13-2.32 (m, 2H) 2.89 (s, 3H) 3.43 (dd, J=10.48, 6.95 Hz, 1H) 3.48-3.56 (m, 1H) 3.69-3.76 (m, 2H) 4.09 (s, 3H) 4.99 (dt, J=12.38, 6.19 Hz, 2H) 6.62 (d, J=9.85 Hz, 1H) 7.04 (dd, J=7.45, 4.93 Hz, 1H) 7.79 (d, J=9.85 Hz, 1H) 8.13-8.19 (m, 2H) 8.86 (dd, J=7.71, 1.64 Hz, 1H). LRMS (ESI) m/z 411.2 [(M+H)]+, calc'd for C21H26N6O3: 410.48.

후처리

  1. customThe water layer was removed
  2. additionthe organic layer was diluted with MeCN
  3. filtrationfiltered

출처 및 근거

ORD 기록
ord-ea4420a88f044e71a89789c5f110135d
출처 데이터셋
uspto-grants-2015_03
특허 번호
US08969565B2

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