Acetone → 7-[(3aS,4R,6R,6aR)-2,2-dimethyl-6-[(propan-2-ylamino)methyl]-hexahydrocyclopenta[d][1,3]dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

HRID 1054528ノート

反応式

HRID 1054528 の反応式
[NH2:1][CH2:2][C@@H:3]1[C@H:7]2[O:8][C:9]([CH3:12])([CH3:11])[O:10][C@H:6]2[C@H:5]([N:13]2[C:17]3[N:18]=[CH:19][N:20]=[C:21]([NH2:22])[C:16]=3[CH:15]=[CH:14]2)[CH2:4]1.[CH3:23][C:24](=O)[CH3:25].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH3:11][C:9]1([CH3:12])[O:8][C@@H:7]2[C@@H:3]([CH2:2][NH:1][CH:24]([CH3:25])[CH3:23])[CH2:4][C@@H:5]([N:13]3[C:17]4[N:18]=[CH:19][N:20]=[C:21]([NH2:22])[C:16]=4[CH:15]=[CH:14]3)[C@@H:6]2[O:10]1

参加物

5

反応物 3

HCID 180AcetoneHCID 5049666Sodium triacetoxyborohydrideHCID 678180027-[(3aS,4R,6R,6aR)-6-(aminomethyl)-2,2-dimethylhexahydrocyclopenta[d][1,3]dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

生成物 1

HCID 677763337-[(3aS,4R,6R,6aR)-2,2-dimethyl-6-[(propan-2-ylamino)methyl]-hexahydrocyclopenta[d][1,3]dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine収率 81%

試薬・触媒・溶媒 1

HCID 111,2-Dichloroethane溶媒

実験手順

7-[(3aS,4R,6R,6aR)-6-(Aminomethyl)-2,2-dimethyl-hexahydrocyclopenta[d][1,3]dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (1.024 g, 3.38 mmol) was dissolved in DCE (35 ml) and propan-2-one (0.50 ml, 6.75 mmol) was added and the reaction left for 15 mins. Sodium triacetoxyborohydride (1.002 g, 4.73 mmol) was added and the reaction left overnight. The reaction was quenched by the addition of sat. Na2CO3 solution (35 ml) and DCM (35 ml). The organic layer was separated and the aqueous layer was extracted with DCM (3×35 ml). The combined organic layers were dried over MgSO4, filtered and concentrated in vacuo to give the crude product. The product was purified by silica flash column chromatography using between 100% DCM and 15% 2M NH3 in MeOH:85% DCM as eluent to give the product as a white foamy solid (0.941 g, 81%): MS (ESI+) for C18H27N5O2 m/z 346.1 [M+H]+, 368.1 [m+Na]+; LCMS: Compound in solvent front; 1H NMR (500 MHz, CDCl3) δ 8.32 (s, 1H), 7.04 (d, J=3.63 Hz, 1H), 6.36 (d, J=3.47 Hz, 1H), 5.08 (br. s., 2H), 4.87-5.02 (m, 2H), 4.54 (t, J=6.38 Hz, 1H), 2.80-2.90 (m, 2H), 2.70-2.80 (m, 1H), 2.46 (dt, J=12.77, 6.54 Hz, 1H), 2.30-2.37 (m, 1H), 2.17 (q, J=11.98 Hz, 1H), 1.57 (s, 3H), 1.31 (s, 3H), 1.09 (t, J=5.44 Hz, 6H).

後処理

  1. waitthe reaction left overnight
  2. customThe reaction was quenched by the addition of sat. Na2CO3 solution (35 ml) and DCM (35 ml)
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with DCM (3×35 ml)
  5. dry with materialThe combined organic layers were dried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customto give the crude product
  9. customThe product was purified by silica flash column chromatography

出典と根拠

ORDレコード
ord-6a3bd5e9dec4402280b1be5b534dca59
出典データセット
uspto-grants-2016_07
特許番号
US09394310B2

反応ノート

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