摘要 研究了β,γ-不饱和γ-烷氧基-α-酮酸酯与N-未取代的5-氨基吡唑的反应。该反应以高区域选择性进行,并且被认为是制备在7位具有酯功能的新型吡唑并[1,5- a ]嘧啶的有效方法。所获得的类药物化合物非常类似于几种市售药物的结构,因此在药物化学上具有巨大的潜力。 研究了β,γ-不饱和γ-烷氧基-α-酮酸酯与N-未取代的5-氨基吡唑的反应。该反应以高区域选择性进行,并且被认为是制备在7位具有酯功能的新型吡唑并[1,5- a ]嘧啶的有效方法。所获得的类药物化合物非常类似于几种市售药物的结构,因此在药物化学上具有巨大的潜力。
5‐a]pyrimidines (5‐carbethoxy‐7‐methyl‐and 7‐carbethoxy‐5‐methyl‐), the structures of which were determined by 1H and 13C NMRspectroscopy. The 6‐carbethoxy‐7‐methyl‐regioisomer is shown to be the only product in the reaction of the same aminopyrazoles with 2‐ethoxymethylidene‐3‐oxobutyrate; the regiochemical assignment was independently achieved by multimuclear (13C and 15N) NMRspectroscopy.
closely resemble the structure of several marketed pharmaceuticals. The reaction of β,γ-unsaturated γ-alkoxy-α-keto esters with N-unsubstituted 5-aminopyrazoles was investigated. The reaction proceeds with high regioselectivity and is considered as an effective method for the preparation of newpyrazolo[1,5-a]pyrimidines bearing an ester function in the 7-position. The obtained drug-like compounds have
摘要 研究了β,γ-不饱和γ-烷氧基-α-酮酸酯与N-未取代的5-氨基吡唑的反应。该反应以高区域选择性进行,并且被认为是制备在7位具有酯功能的新型吡唑并[1,5- a ]嘧啶的有效方法。所获得的类药物化合物非常类似于几种市售药物的结构,因此在药物化学上具有巨大的潜力。 研究了β,γ-不饱和γ-烷氧基-α-酮酸酯与N-未取代的5-氨基吡唑的反应。该反应以高区域选择性进行,并且被认为是制备在7位具有酯功能的新型吡唑并[1,5- a ]嘧啶的有效方法。所获得的类药物化合物非常类似于几种市售药物的结构,因此在药物化学上具有巨大的潜力。