Sodium periodate → 6-(4-Methoxybenzyl)-5-oxo-5,6-dihydropyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine-9-carbaldehyde

HRID 926117

반응식

HRID 926117 반응식
[CH3:1][O:2][C:3]1[CH:25]=[CH:24][C:6]([CH2:7][N:8]2[C:13]3[N:14]=[CH:15][C:16]([CH:18]=C)=[CH:17][C:12]=3[C:11]3=[N:20][CH:21]=[N:22][N:10]3[C:9]2=[O:23])=[CH:5][CH:4]=1.I([O-])(=O)(=O)=[O:27].[Na+]>C1COCC1.O.[Os](=O)(=O)(=O)=O.C(O)CCC>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([CH2:7][N:8]2[C:13]3[N:14]=[CH:15][C:16]([CH:18]=[O:27])=[CH:17][C:12]=3[C:11]3=[N:20][CH:21]=[N:22][N:10]3[C:9]2=[O:23])=[CH:24][CH:25]=1

참가 물질

7

반응물 2

HCID 23667635Sodium periodateHCID 867053866-(4-methoxybenzyl)-9-vinylpyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one

생성물 1

HCID 867053916-(4-Methoxybenzyl)-5-oxo-5,6-dihydropyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine-9-carbaldehyde수율 103.5%

시약·촉매·용매 4

HCID 2631-Butanol촉매HCID 30318Osmium Tetroxide촉매HCID 962Water용매2회HCID 8028Tetrahydrofuran용매

실험 절차

6-(4-Methoxybenzyl)-9-vinylpyrido[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one (Example 30, 3.96 g, 11.9 mmol) was suspended in THF (80 mL) and heated with a heat gun to effect dissolution. Similarly, sodium periodate (5.84 g, 27.3 mmol) was heated in water (40 mL) to effect dissolution. The above solutions were combined with vigorous stirring. While the stirred mixture was still at 40° C., osmium(VIII) oxide in ten-butanol (2.90 mL, 2.5%, 0.30 mmol) was added and the mixture was stirred vigorously for 4 h. The reaction mixture was diluted with water (300 mL) and extracted with EtOAc (3×150 mL) and DCM (3×150 mL). The combined organic layers were dried (MgSO4) and concentrated to afford the title compound (4.13 g, 99%) as a black solid which was used in the next step without further purification. 1H NMR (400 MHz, CDCl3) δ 3.77 (s, 3H), 5.80 (s, 2H), 6.83 (d, J=8.66 Hz, 2H), 7.61 (d, J=8.66 Hz, 2H), 8.41 (s, 1H), 9.10 (d, J=2.13 Hz, 1H), 9.26 (d, J=2.13 Hz, 1H), 10.21 (s, 1H). [M+H]=336.2.

후처리

  1. temperatureheated with a heat gun
  2. dissolutiondissolution
  3. dissolutiondissolution
  4. customwas still at 40° C.
  5. extractionextracted with EtOAc (3×150 mL) and DCM (3×150 mL)
  6. dry with materialThe combined organic layers were dried (MgSO4)
  7. concentrationconcentrated

출처 및 근거

ORD 기록
ord-0b8ef88e693e469ca7430edbe01e4957
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09284335B2

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