Potassium Carbonate → 5-amino-3-[(2R,3R,5S)-3-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-6H-thiazolo[4,5-d]pyrimidine-2,7-dione

HRID 60758노트

반응식

HRID 60758 반응식
[C:1]([O:9][CH2:10][C@@H:11]1[CH2:15][C@@H:14]([O:16]C(=O)C)[C@H:13]([N:20]2[C:24]3[N:25]=[C:26]([NH2:30])[NH:27][C:28](=[O:29])[C:23]=3[S:22][C:21]2=[O:31])[O:12]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+]>CO>[NH2:30][C:26]1[NH:27][C:28](=[O:29])[C:23]2[S:22][C:21](=[O:31])[N:20]([C@H:13]3[C@H:14]([OH:16])[CH2:15][C@@H:11]([CH2:10][OH:9])[O:12]3)[C:24]=2[N:25]=1.[C:1]([O:9][CH2:10][C@@H:11]1[CH2:15][C@@H:14]([OH:16])[C@H:13]([N:20]2[C:24]3[N:25]=[C:26]([NH2:30])[NH:27][C:28](=[O:29])[C:23]=3[S:22][C:21]2=[O:31])[O:12]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

5

반응물 2

HCID 11430Potassium CarbonateHCID 137108751[(2S,4R,5R)-4-acetoxy-5-(5-amino-2,7-dioxo-6H-thiazolo[4,5-d]pyrimidin-3-yl)tetrahydrofuran-2-yl]methyl benzoate2회

생성물 2

HCID 1355255055-amino-3-[(2R,3R,5S)-3-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-6H-thiazolo[4,5-d]pyrimidine-2,7-dioneHCID 137108701[(2S,4R,5R)-5-(5-amino-2,7-dioxo-6H-thiazolo[4,5-d]pyrimidin-3-yl)-4-hydroxy-tetrahydrofuran-2-yl]methyl benzoate

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

A mixture of [(2S,4R,5R)-4-acetoxy-5-(5-amino-2,7-dioxo-6H-thiazolo[4,5-d]pyrimidin-3-yl)tetrahydrofuran-2-yl]methyl benzoate (compound 38a, 4.72 g, 10.6 mmol) and potassium carbonate (1.46 g, 10.6 mmol) in methanol (106 mL) was stirred at room temperature for 3.5 hours. The reaction was quenched by addition of acetic acid (1.5 mL). The resulting mixture was concentrated in vacuo to remove the solvent and the residue was purified by column chromatography on silica gel (eluting with 0-5% methanol in DCM) to afford 1.0 g of 5-amino-3-[(2R,3R,5S)-3-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-6H-thiazolo[4,5-d]pyrimidine-2,7-dione (compound 38b) and 2.8 g of [(2S,4R,5R)-5-(5-amino-2,7-dioxo-6H-thiazolo[4,5-d]pyrimidin-3-yl)-4-hydroxy-tetrahydrofuran-2-yl]methyl benzoate (compound 38c) as a pale solid.

후처리

  1. customThe reaction was quenched by addition of acetic acid (1.5 mL)
  2. concentrationThe resulting mixture was concentrated in vacuo
  3. customto remove the solvent
  4. customthe residue was purified by column chromatography on silica gel (eluting with 0-5% methanol in DCM)

출처 및 근거

ORD 기록
ord-3383431c0ccf47238d3915112f62f6b9
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09441008B2

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