Synthesis of androsteno[17,16-d]pyrazoles and androsteno[17,16-d]-2′-pyrazolines with pyrazolo[3,4-d]pyrimidine fragments
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DOI: 10.1007/s11172-018-2185-5
Abstract: Reactions of pyrazolo[3,4-d]pyrimidine-containing hydrazines with pregnenolone derivatives were studied. The reaction of 16α,17α-epoxy-3β-hydroxy-5-pregnen-20-one and its 3-O-acetyl derivative with 6-hydrazino-3,4-dimethyl-1H-pyrazolo[3,4-d]pyrimidine and 4-hydrazino-3-methyl-6-phenyl-1H-pyrazolo[3,4-d]pyrimidine afforded new androsteno[17,16-d]pyrazoles with pyrazolo[3,4-d]pyrimidine fragments. The reaction of 3β-hydroxypregna-5,16-dien-20-one and its 3-O-acetyl derivative… read more here.
Keywords: pyrimidine; pyrimidine fragments; pyrazolo pyrimidine; androsteno pyrazoles ... See more keywords