A highly selective and efficient method for the synthesis of 5-trifluoromethylated and 5-perfluoroalkylated pyrazoles has been developed which relies on the cyclization of hydrazine dianions with ethyl perfluorocarboxylates. The pyrazoles prepared were evaluated as potential inhibitors of alkaline phosphatases, namely human tissue non-specific alkaline phosphatase (h-TNAP) and tissue specific intestinal
已经开发了一种高度选择性和有效的合成5-三
氟甲基化和5-
全氟烷基化
吡唑的方法,该方法依赖于
肼二价阴离子与
全氟羧酸乙酯的环化。所制备的
吡唑被评估为碱性
磷酸酶的潜在
抑制剂,即人体组织非特异性碱性
磷酸酶(h-TNAP)和组织特异性肠道碱性
磷酸酶(IAP)。大多数
吡唑衍
生物比h-TNAP更明显地抑制h-IAP,并且对核苷酸
焦磷酸酶/
磷酸二酯酶的影响较小。因此,该化合物显示为h-IAP的潜在选择性
抑制剂。