Diisopropylethylamine → 5-Methyl-pyrazine-2-carboxylic acid {3-[(1-methyl-1H-pyrazole-3-carbonyl)-amino]-adamantan-1-yl}-amide

HRID 550870

반응식

HRID 550870 반응식
[C:1]12([NH2:12])[CH2:10][CH:5]3[CH2:6][CH:7]([CH2:9][C:3]([NH2:11])([CH2:4]3)[CH2:2]1)[CH2:8]2.CCN(C(C)C)C(C)C.[CH3:22][N:23]1[CH:27]=[CH:26][C:25]([C:28]([OH:30])=O)=[N:24]1.[CH3:31][C:32]1[N:33]=[CH:34][C:35]([C:38](O)=[O:39])=[N:36][CH:37]=1.F[P-](F)(F)(F)(F)F.N1(O[P+](N2CCCC2)(N2CCCC2)N2CCCC2)C2C=CC=CC=2N=N1>C(Cl)Cl>[CH3:22][N:23]1[CH:27]=[CH:26][C:25]([C:28]([NH:12][C:1]23[CH2:10][CH:5]4[CH2:6][CH:7]([CH2:9][C:3]([NH:11][C:38]([C:35]5[CH:34]=[N:33][C:32]([CH3:31])=[CH:37][N:36]=5)=[O:39])([CH2:4]4)[CH2:2]2)[CH2:8]3)=[O:30])=[N:24]1

참가 물질

7

반응물 5

HCID 81531DiisopropylethylamineHCID 1228315-Methyl-2-pyrazinecarboxylic acidHCID 213512Adamantane-1,3-diamineHCID 5731761-methyl-1H-pyrazole-3-carboxylic acidHCID 2724699PyBOP

생성물 1

HCID 446332035-Methyl-pyrazine-2-carboxylic acid {3-[(1-methyl-1H-pyrazole-3-carbonyl)-amino]-adamantan-1-yl}-amide수율 38%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of adamantane-1,3-diamine (20 mg, 0.1 mmol; Zerenex Molecular Ltd., Greater Manchester, UK) in DCM (2 mL) was added DIEA (26 mg, 0.15 mmol), 1-methyl-1H-pyrazole-3-carboxylic acid (14 mg, 0.11 mmol), 5-methyl-pyrazine-2-carboxylic acid (15 mg, 0.11 mmol) and benzotriazol-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate (110 mg, 0.20 mmol). After stirring for 3 hours at rt, the reaction mixture was partitioned into dichloromethane and saturated sodium bicarbonate. The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified on a RP-HPLC/MS purification system (Gradient: acetonitrile in water, 25-95%, in 3.4 minutes with a cycle time of 5 min. A shallow gradient between 25-50% of acetonitrile was used between 0.75-3.3 min to separate close-eluting impurities. Flow rate: 100 mL/min. Mobile phase additive: 25 mM of ammonium formate. Column: Inertsil® C8, 30×50 mm, 5 μm particle size (GL Sciences, Tokyo, Japan)) to afford 15 mg (37%) of the title compound, 5-methyl-pyrazine-2-carboxylic acid {3-[(1-methyl-1H-pyrazole-3-carbonyl)-amino]-adamantan-1-yl}-amide, as a colorless oil. 1H NMR (400 MHz, CDCl3) δ9.22 (s, 1H), 8.34-8.33 (m, 1H), 7.67 (s, br, 1H), 7.33 (d, J=2.3 Hz, 1H), 6.76-6.72 (m, 2H), 3.89 (s, 3H), 2.64 (s, 3H), 2.54 (s, br, 2H), 2.37-2.09 (m, 10H), 1.73-1.68 (m, 2H). ESI-MS m/z: 395.0 (M+H)+.

후처리

  1. customthe reaction mixture was partitioned into dichloromethane and saturated sodium bicarbonate
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified on a RP-HPLC/MS purification system (Gradient
  6. waitacetonitrile in water, 25-95%, in 3.4 minutes with a cycle time of 5 min
  7. waitA shallow gradient between 25-50% of acetonitrile was used between 0.75-3.3 min
  8. customto separate
  9. washclose-eluting impurities

출처 및 근거

ORD 기록
ord-3f6d164b6fbd424aaca1a76253337802
출처 데이터셋
uspto-grants-2011_05
특허 번호
US07947680B2

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