Dodecanoyl chloride → 4-(3-Chloro-phenylamino)-3-(4-[n-dodecanoyl]-piperazin-1-yl)-1h-pyrazolo[3,4-d]pyrimidine

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Reaction Steps

Analogously to Example 26, 100 mg (0.248 mmol) of 4-(3-chloro-phenylamino)-3-(piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrmidine dihydrochloride and 103 mg (0.74 mmol) of potassium carbonate in 10 ml of water are reacted with 81.5 mg (0.37 mmol) of lauric acid chloride in 10 ml of dioxane and extracted. Column chromatography (SiO2; methylene chloride/ethyl acetate/acetic acid=50:50:1) yields 4-(3-chloro-phenylamino)-3-(4-[n-dodecanoyl]-piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine; HPLC: tRet(grad20-100/20)=22.6; FAB-MS: (M+H)+=512.

Provenance & Evidence