Cyclopropylamine → N-cyclopropyl-4-methyl-3-[2-oxo-3-[[(R)-phenyl-4-piperidinylmethyl]amino]-1(2H)-pyrazinyl]-benzamide

HRID 2070703ノート

反応式

HRID 2070703 の反応式
Br[C:2]1[C:3](=[O:20])[N:4]([C:9]2[CH:10]=[C:11]([CH:16]=[CH:17][C:18]=2[CH3:19])[C:12]([O:14]C)=O)[CH:5]=[C:6](Br)[N:7]=1.C([N:24](CC)[CH:25]([CH3:27])[CH3:26])(C)C.[NH2:30][C@@H:31]([C:48]1[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1)[CH:32]1[CH2:37][CH2:36][N:35](C(OCC2C=CC=CC=2)=O)[CH2:34][CH2:33]1.C1(N)CC1.C1([Mg]Br)CCCC1>O1CCCC1.C(OCC)(=O)C.C(O)C>[CH:25]1([NH:24][C:12](=[O:14])[C:11]2[CH:16]=[CH:17][C:18]([CH3:19])=[C:9]([N:4]3[CH:5]=[CH:6][N:7]=[C:2]([NH:30][C@@H:31]([C:48]4[CH:49]=[CH:50][CH:51]=[CH:52][CH:53]=4)[CH:32]4[CH2:33][CH2:34][NH:35][CH2:36][CH2:37]4)[C:3]3=[O:20])[CH:10]=2)[CH2:27][CH2:26]1

参加物

9

反応物 5

HCID 69828CyclopropylamineHCID 81531DiisopropylethylamineHCID 66688740methyl 3-(3,5-dibromo-2-oxopyrazin-1(2H)-yl)-4-methylbenzoateHCID 666897524-[(R)-aminophenylmethyl]-1-piperidinecarboxylic acid phenylmethyl esterHCID 178419650HCID 178419650、化合物

生成物 1

HCID 66688623N-cyclopropyl-4-methyl-3-[2-oxo-3-[[(R)-phenyl-4-piperidinylmethyl]amino]-1(2H)-pyrazinyl]-benzamide

試薬・触媒・溶媒 3

HCID 702Ethanol溶媒HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
110 °C

実験手順

To a stirred solution of 3-(3,5-dibromo-2-oxo-2H-pyrazin-1-yl)-4-methyl-benzoic acid, methyl ester (Example 1b, 0.1 g) in tetrahydrofuran (1.5 mL) within a microwave vial was added N,N-diisopropylethylamine (130 μL) and 4-[(R)-aminophenylmethyl]-1-piperidinecarboxylic acid, phenylmethyl ester (98 mg). The reaction was heated at 110° C. for 60 minutes within a microwave. The reaction was cooled to room temperature before the addition of cyclopropylamine (0.13 mL) and cyclopentylmagnesium bromide (2M in diethyl ether, 1 mL) dropwise. After stirring for 30 minutes, ethanol (1 mL) was added followed by ethyl acetate. The solvent was washed with water, and brine, then dried (Na2SO4), filtered and the solvent removed. The product was dissolved in t-butanol (2 mL) followed by the addition of 1,4-cyclohexadiene (1 mL) and 10% Pd on carbon (30 mg). The reaction mixture was heated within a microwave at 120° C. for 30 minutes, cooled to room temperature, filtered and purified by preparative HPLC (Gemini column, 0.1% trifluoroacetic acid: acetonitrile eluent) to afford N-cyclopropyl-4-methyl-3-[2-oxo-3-[[(R)-phenyl-4-piperidinylmethyl]amino]-1(2H)-pyrazinyl]-benzamide (58 mg) and 4-[(R)-4-[[4-[5-[(cyclopropylamino)carbonyl]-2-methylphenyl]-3,4-dihydro-3-oxopyrazinyl]amino]phenylmethyl]-1-piperidinecarboxylic acid, phenyl ester (19 mg).

後処理

  1. washThe solvent was washed with water, and brine
  2. dry with materialdried (Na2SO4)
  3. filtrationfiltered
  4. customthe solvent removed
  5. dissolutionThe product was dissolved in t-butanol (2 mL)
  6. additionfollowed by the addition of 1,4-cyclohexadiene (1 mL) and 10% Pd on carbon (30 mg)
  7. temperatureThe reaction mixture was heated within a microwave at 120° C. for 30 minutes
  8. temperaturecooled to room temperature
  9. filtrationfiltered
  10. custompurified by preparative HPLC (Gemini column, 0.1% trifluoroacetic acid: acetonitrile eluent)

出典と根拠

ORDレコード
ord-5db21dc975de49219c84f3d7f4b6fbf7
出典データセット
uspto-grants-2012_10
特許番号
US08299246B2

反応ノート

読み込み中…