Potassium Carbonate → 4-(2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-3-formylpyridin-4-yl)-1-methyl-1H-pyrrole-2-carboxamide

HRID 1025598노트

반응식

HRID 1025598 반응식
[CH3:1][N:2]1[CH:6]=[C:5](B2OC(C)(C)C(C)(C)O2)[CH:4]=[C:3]1[C:16]([NH2:18])=[O:17].[C:19]([C:23]1[CH:24]=[C:25]2[C:30](=[C:31]([F:33])[CH:32]=1)[C:29](=[O:34])[N:28]([C:35]1[N:42]=[CH:41][CH:40]=[C:39](I)[C:36]=1[CH:37]=[O:38])[N:27]=[CH:26]2)([CH3:22])([CH3:21])[CH3:20].O1CCOCC1.C(=O)([O-])[O-].[K+].[K+]>O.C(OCC)(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[C:19]([C:23]1[CH:24]=[C:25]2[C:30](=[C:31]([F:33])[CH:32]=1)[C:29](=[O:34])[N:28]([C:35]1[C:36]([CH:37]=[O:38])=[C:39]([C:5]3[CH:4]=[C:3]([C:16]([NH2:18])=[O:17])[N:2]([CH3:1])[CH:6]=3)[CH:40]=[CH:41][N:42]=1)[N:27]=[CH:26]2)([CH3:22])([CH3:20])[CH3:21]

참가 물질

8

반응물 4

HCID 11430Potassium CarbonateHCID 312751,4-DioxaneHCID 710080811-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole-2-carboxamideHCID 866737152-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-iodonicotinaldehyde

생성물 1

HCID 866737144-(2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-3-formylpyridin-4-yl)-1-methyl-1H-pyrrole-2-carboxamide수율 28.2%

시약·촉매·용매 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 962Water용매HCID 8857Ethyl Acetate용매

실험 절차

In a 100 mL round-bottomed flask, 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole-2-carboxamide (61.0 mg, 244 μmol, Eq: 1.10), 2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-iodonicotinaldehyde (100 mg, 222 μmol, Eq: 1.00) and [1,1′-bis(Diphenylphosphino)ferrocene]dichloro palladium (II) (16.2 mg, 22.2 μmol, Eq: 0.1) were combined with dioxane (667 μl) to give a red solution. Potassium carbonate (61.3 mg, 443 μmol, Eq: 2) in water (66.7 μl) was added and the resultant suspension was heated to 70° C. and stirred for 32 h. The reaction was diluted with ethyl acetate (10 mL), washed with brine, dried over Na2SO4 and concentrated in vacuo. The crude material was purified by flash chromatography (silica gel, 12 g, 10% to 15% EtOAc in hexanes to give 4-[2-(6-tert-Butyl-8-fluoro-1-oxo-1H-phthalazin-2-yl)-3-formyl-pyridin-4-yl]-1-methyl-1H-pyrrole-2-carboxylic acid amide (28 mgs, 28.2%) as an off white solid. 1H NMR (DMSO-d6) δ: 10.06 (s, 1H), 8.72 (d, J=5.3 Hz, 1H), 8.53 (d, J=2.5 Hz, 1H), 7.91 (d, J=1.8 Hz, 1H), 7.79 (dd, J=13.3, 1.8 Hz, 1H), 7.73 (d, J=5.3 Hz, 1H), 7.69-7.76 (m, 1H), 7.50 (d, J=1.8 Hz, 1H), 7.17 (d, J=2.0 Hz, 1H), 7.12 (br. s., 1H), 3.93 (s, 3H), 1.39 (s, 9H); MS m/e 448.5 (M+H+).

후처리

  1. customto give a red solution
  2. washwashed with brine
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated in vacuo
  5. customThe crude material was purified by flash chromatography (silica gel, 12 g, 10% to 15% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-f30bf4c31e8849a095f18ca807e65bf4
출처 데이터셋
uspto-grants-2014_05
특허 번호
US08729078B2

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