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Diisopropylethylamine → (E)-N-(3-Isopropyl-2-propoxybenzyl)-N-methyl-3-(7-oxo-5,6,7,8-tetrahydro-(1,8]naphthyridin-3-yl)acrylamide

HRID 2097031
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HRID 2097031 반응식
[CH:1]([C:4]1[C:5]([O:13][CH2:14][CH2:15][CH3:16])=[C:6]([CH:10]=[CH:11][CH:12]=1)[CH2:7]CN)([CH3:3])[CH3:2].[CH:17]([N:20](C(C)C)CC)(C)C.Cl.[O:27]=[C:28]1[NH:37][C:36]2[N:35]=[CH:34][C:33](/[CH:38]=[CH:39]/[C:40]([OH:42])=O)=[CH:32][C:31]=2[CH2:30][CH2:29]1.O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>CN(C=O)C.O>[CH:1]([C:4]1[C:5]([O:13][CH2:14][CH2:15][CH3:16])=[C:6]([CH:10]=[CH:11][CH:12]=1)[CH2:7][N:20]([CH3:17])[C:40](=[O:42])/[CH:39]=[CH:38]/[C:33]1[CH:34]=[N:35][C:36]2[NH:37][C:28](=[O:27])[CH2:29][CH2:30][C:31]=2[CH:32]=1)([CH3:2])[CH3:3]
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참가 물질

8

반응물 5

HCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 66905305(E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic Acid HydrochlorideHCID 66966658(3-Isopropyl-2-propoxybenzyl)methylamine

생성물 1

HCID 16662051
(E)-N-(3-Isopropyl-2-propoxybenzyl)-N-methyl-3-(7-oxo-5,6,7,8-tetrahydro-(1,8]naphthyridin-3-yl)acrylamide
수율 63%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

A solution of (3-isopropyl-2-propoxybenzyl)methylamine (0.238 g, 1.07 mmol) and diisopropyl-ethylamine (0.51 mL, 2.9 mmol) in DMF (20 mL) under N2 was treated sequentially with (E)-3-(7-oxo-5,6,7,8-tetrahydro-[1,8]naphthyridin-3-yl)acrylic acid hydrochloride (0.250 g, 0.981 mmol), 1-hydroxybenzotriazole hydrate (0.144 g, 1.07 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.205 g, 1.07 mmol). After stirring for 18 h, the reaction mixture was diluted with H2O (30 mL). The resulting solids were collected by filtration and when washed with Et2O (50 mL) were unexpectedly dissolved. The filtrate was extracted with EtOAc (3×50 mL). The combined organics were washed with brine (2×100 mL), dried (Na2SO4) and concentrated to a light yellow solid. Purification by column chromatography (silica gel, CH2Cl2/MeOH, 100 to 99.5:0.5) gave the title compound (0.26 g, 63%) as a white solid and as a mixture of amide rotamers: 1H NMR (500 MHz, DMSO-d6) δ 10.64-10.62 (m, 1H), 8.37-8.31 (m, 1H), 8.09-7.98 (m, 1H), 7.52-7.49 (m, 1H), 7.28-7.19 (m, 2H), 7.10-7.06 (m, 1H), 6.89-6.87 (m, 1H), 4.80-4.66 (m, 2H), 3.76-3.70 (m, 2H), 3.31-3.26 (m, 1H), 3.12-2.85 (m, 5H), 2.55-2.49 (m, 2H), 1.82-1.76 (m, 2H), 1.19-1.17 (m, 6H), 1.05-1.02 (m, 3H); MS (ESI) m/e 422 (M+H)+.

후처리

  1. filtrationThe resulting solids were collected by filtration and when
  2. washwashed with Et2O (50 mL)
  3. dissolutionwere unexpectedly dissolved
  4. extractionThe filtrate was extracted with EtOAc (3×50 mL)
  5. washThe combined organics were washed with brine (2×100 mL)
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated to a light yellow solid
  8. customPurification by column chromatography (silica gel, CH2Cl2/MeOH, 100 to 99.5:0.5)

출처 및 근거

ORD 기록
ord-7ff5348d0c644fdba43560118e3693be
출처 데이터셋
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08450307B2

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