Ethanolamine → 2-[[6-(3-Fluoroanilino)-9-isopropyl-purin-2-yl]amino]ethanol

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Reaction Steps

0.2 g (0.63 mmol) of 2-chloro-9-isopropyl-6-(3-fluoro-phenyl-amino)-9H-purine (prepared according to Stage 91.1) is stirred in 1 ml of ethanolamine at 150° C. for 5 h, and the mixture is then allowed to cool and is diluted with ethyl acetate. The organic phase is washed with water and dried over sodium sulfate. On concentration of the solvent, 6-(3-fluoro-phenyl-amino)-2-(2-hydroxy-ethyl-amino)-9-isopropyl-9H-purine is obtained as a crystalline mass. This is filtered off and dried; m.p. 142° C.; FAB-MS: (M+H)+=330; Rf=0.6 (CH2Cl2:methanol 9:1).

Provenance & Evidence