Trifluoroacetic acid → 1-[6-Amino-9-((1R,2S,3R,4S)-2,3-dihydroxy-4-propionylamino-cyclopentyl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid ethyl ester

HRID 2382452Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2382452
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][N:9]([C:11]2[N:19]=[C:18]3[C:14]([N:15]=[CH:16][N:17]3[C@@H:20]3[CH2:24][C@H:23]([NH:25][C:26](=[O:29])[CH2:27][CH3:28])[C@@H:22]([OH:30])[C@H:21]3[OH:31])=[C:13]([NH:32]C(C3C=CC(OC)=CC=3)C3C=CC(OC)=CC=3)[N:12]=2)[CH:10]=1)=[O:5])[CH3:2].C(O)(C(F)(F)F)=O>ClCCl>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][N:9]([C:11]2[N:19]=[C:18]3[C:14]([N:15]=[CH:16][N:17]3[C@@H:20]3[CH2:24][C@H:23]([NH:25][C:26](=[O:29])[CH2:27][CH3:28])[C@@H:22]([OH:30])[C@H:21]3[OH:31])=[C:13]([NH2:32])[N:12]=2)[CH:10]=1)=[O:5])[CH3:2]

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 666310101-[6-{[bis-(4-methoxy-phenyl)-methyl]-amino}-9-((1R,2S,3R,4S)-2,3-dihydroxy-4-propionylamino-cyclopentyl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid ethyl ester

Produkt 1

HCID 666307391-[6-Amino-9-((1R,2S,3R,4S)-2,3-dihydroxy-4-propionylamino-cyclopentyl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A cooled (0° C.) solution of 1-[6-{[Bis-(4-methoxy-phenyl)-methyl]-amino}-9-((1R,2S,3R,4S)-2,3-dihydroxy-4-propionylamino-cyclopentyl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid ethyl ester (0.1 g, 0.149 mmol) in dry dichloromethane (4 ml) is treated dropwise with TFA (2 ml). The mixture is stirred at room temperature for 12 h and then concentrated in vacuo. The residue is co-evaporated with chloroform three times to remove excess trifluoro acetic acid and purification of the residue by preparative HPLC affords the title compound.

Aufarbeitung

  1. concentrationconcentrated in vacuo
  2. customto remove excess
  3. customtrifluoro acetic acid and purification of the residue by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-fc1e264e8c3549d9ba74005857ee3fe1
Quelldatensatz
uspto-grants-2012_09
Patentnummer
US08258141B2

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