Hydrochloric Acid → 1-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)-N-(1,3-dioxoisoindolin-5-yl)piperidine-3-carboxamide hydrochloride

HRID 1755399노트

반응식

HRID 1755399 반응식
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:11][C:12]2[C:13]3[N:14]([CH:27]=[CH:28][N:29]=3)[N:15]=[C:16]([N:18]3[CH2:23][CH2:22][CH2:21][CH:20]([C:24]([OH:26])=O)[CH2:19]3)[CH:17]=2)=[N:7][C:8]=1[O:9][CH3:10].[NH2:30][C:31]1[CH:32]=[C:33]2[C:37](=[CH:38][CH:39]=1)[C:36](=[O:40])[NH:35][C:34]2=[O:41].N1C=CC=CC=1.[ClH:48]>O=P(Cl)(Cl)Cl.O>[ClH:48].[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:11][C:12]2[C:13]3[N:14]([CH:27]=[CH:28][N:29]=3)[N:15]=[C:16]([N:18]3[CH2:23][CH2:22][CH2:21][CH:20]([C:24]([NH:30][C:31]4[CH:32]=[C:33]5[C:37](=[CH:38][CH:39]=4)[C:36](=[O:40])[NH:35][C:34]5=[O:41])=[O:26])[CH2:19]3)[CH:17]=2)=[N:7][C:8]=1[O:9][CH3:10]

참가 물질

7

반응물 4

HCID 313Hydrochloric AcidHCID 1049PyridineHCID 729154-AminophthalimideHCID 866827441-(8-(5,6-Dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)piperidine-3-carboxylic acid

생성물 1

HCID 866827431-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)-N-(1,3-dioxoisoindolin-5-yl)piperidine-3-carboxamide hydrochloride수율 2%

시약·촉매·용매 2

HCID 24813Phosphorus oxychloride촉매HCID 962Water용매

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온도
0 °C

실험 절차

A mixture of 1-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)piperidine-3-carboxylic acid (500 mg, 1.26 mmol), 5-aminoisoindoline-1,3-dione (250 mg, 1.51 mmol) and pyridine (10 mL) was stirred at 0° C. for 2 h. POCl3 (20 drops) was added and stirred for 10 mins, then water (5 mL) was added and the mixture extracted with ethyl acetate (10 mL). The organic layer was washed with brine (10 mL), then dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by prep-HPLC (Gemini 5u C18 150×21.2 mm; inject volume: 3 mL/inj, flow rate: 20 mL/min; wavelength: 214 nm and 254 nm; gradient conditions: 20% acetonitrile/80% water (0.1% TFA, v/v) initially, proceeding to 50% acetonitrile/50% water (0.1% TFA, v/v) in a linear fashion over 9 min) to give the product. HCl (1 mL) was added and then the mixture concentrated in vacuo to give 1-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)-N-(1,3-dioxoisoindolin-5-yl)piperidine-3-carboxamide hydrochloride (10 mg, 2%). 1H NMR (300 MHz, DMSO): δ 11.23 (s, 1H), 10.65 (s, 1H), 10.21 (s, 1H), 8.15 (s, 2H), 7.98 (s, 1H), 7.86 (d, 1H, J=8.4 Hz), 7.77 (d, 1H, J=7.8 Hz), 7.43 (d, 1H, J=8.1 Hz), 6.93 (d, 1H, J=8.1 Hz), 4.29 (d, 1H, J=11.7 Hz), 4.14 (d, 1H, J=12.3 Hz), 3.91 (s, 3H), 7.56 (s, 3H), 3.23-3.02 (m, 2H), 2.73 (s, 1H), 2.10-2.06 (s, 1H), 1.82-1.75 (m, 3H). LC-MS: [M+H]+, 543, tR=1.406 min, HPLC: 98.08% at 214 nm, 98.69% at 254 nm, tR=5.25 min.

후처리

  1. stirringstirred for 10 mins
  2. extractionthe mixture extracted with ethyl acetate (10 mL)
  3. washThe organic layer was washed with brine (10 mL)
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by prep-HPLC (Gemini 5u C18 150×21.2 mm
  8. waitgradient conditions: 20% acetonitrile/80% water (0.1% TFA, v/v) initially, proceeding to 50% acetonitrile/50% water (0.1% TFA, v/v) in a linear fashion over 9 min
  9. custom) to give the product
  10. concentrationthe mixture concentrated in vacuo

출처 및 근거

ORD 기록
ord-c09949b304e04508a7af653863e70274
출처 데이터셋
uspto-grants-2015_10
특허 번호
US09169259B2

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