Hydrochloric Acid → N-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-4-ethoxy-benzamide

HRID 331578

반응식

HRID 331578 반응식
CS(O)(=O)=O.[NH2:6][CH2:7][C:8]1[CH:9]=[C:10]2[C:14](=[CH:15][CH:16]=1)[C:13](=[O:17])[N:12]([CH:18]1[CH2:23][CH2:22][C:21](=[O:24])[NH:20][C:19]1=[O:25])[CH2:11]2.[CH2:26]([O:28][C:29]1[CH:37]=[CH:36][C:32]([C:33](Cl)=[O:34])=[CH:31][CH:30]=1)[CH3:27].Cl>C(#N)C>[O:25]=[C:19]1[CH:18]([N:12]2[CH2:11][C:10]3[C:14](=[CH:15][CH:16]=[C:8]([CH2:7][NH:6][C:33](=[O:34])[C:32]4[CH:31]=[CH:30][C:29]([O:28][CH2:26][CH3:27])=[CH:37][CH:36]=4)[CH:9]=3)[C:13]2=[O:17])[CH2:23][CH2:22][C:21](=[O:24])[NH:20]1

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 1400594-Ethoxybenzoyl ChlorideHCID 866307653-(5-(Aminomethyl)-1-oxoisoindolin-2-yl)piperidine-2,6-dione methanesulfonate

생성물 1

HCID 44538213N-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-4-ethoxy-benzamide수율 46%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To a stirred mixture of 3-(5-aminomethyl-1-oxo-1,3-dihydro-isoindol-2-yl)-piperidine-2,6-dione methanesulfonate (0.50 g, 1.4 mmol) and 4-ethoxybenzoyl chloride (0.26 g, 1.4 mmol) in acetonitrile (30 mL) at 0° C. was added TEA (0.28 g, 2.8 mmol) dropwise over 10 min. The mixture was stirred at ambient temperature for 2 h and then 10% aqueous HCl solution (30 mL) was added. The solid precipitate was filtered and purified by column chromatography (C18 reverse phase column). The product fractions were combined, concentrated and dried in vacuo providing N-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-4-ethoxy-benzamide as a white solid (0.26 g, 46% yield); mp 269-271° C.; HPLC, Waters Symmetry C-18, 3.9×150 mm, 5 μm, 1 ml/min, 240 nm, 30/70 CH3CN/0.1% H3PO4, 5.75 (96.56%); 1H NMR (DMSO-d6) δ 1.34 (t, 3H, CH3), 1.90-2.08 (m, 1H, CHH), 2.27-2.45 (m, 1H, CHH), 2.55-2.68 (m, 1H, CHH), 2.80-3.03 (m, 1H, CHH), 4.09 (q, 2H, CH2), 4.30 (d, 1H, CHH), 4.41 (d, 1H, CHH), 4.58 (d, 2H, CH2 and CHH), 5.10 (dd, J=4.5, 13.0 Hz, 1H, CH), 6.99 (d, J=8.3 Hz, 2H, Ar), 7.44 (d, 1H, Ar), 7.54 (s, 1H, Ar), 7.69 (d, 1H, Ar), 7.87 (d, J=8.5 Hz, 2H, Ar), 8.99 (t, 1H, NH), 10.98 (s, 1H, NH); 13C NMR (DMSO-d6) δ 14.53, 22.49, 31.18, 42.64, 47.12, 51.56, 63.28, 113.92, 122.01, 122.90, 126.19, 127.02, 129.09, 130.30, 142.35, 144.20, 160.92, 165.75, 167.93, 170.98, 172.85; LCMS: MH=422; Anal. Calcd for C23H23N3O5+0.5H2O: C, 64.18; H, 5.62; N, 9.76. Found: C, 64.03; H, 5.45; N, 9.63.

후처리

  1. filtrationThe solid precipitate was filtered
  2. custompurified by column chromatography (C18 reverse phase column)
  3. concentrationconcentrated
  4. customdried in vacuo

출처 및 근거

ORD 기록
ord-49196119346142dbab51e77bf600dfc3
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08877780B2

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