Studies on the synthesis of compounds related to adenosine 3',5'-cyclic phosphate. VII. Synthesis and cardiac effects of N6,N6-dialkyl adenosine 3',5'-cyclic phosphates.
作者:Shigehiro KATAOKA、Nobuyuki YAMAJI、Motohiko KATO、Tomie KAWADA、Shoichi IMAI
DOI:10.1248/cpb.38.3147
日期:——
A series of novel N6,N6-dialkyl adenosine 3',5'-cyclic phosphates N6,N6-dialkyl cAMPs) was synthesized from 2'-O-p-toluenesulfonyl cAMP (2'-O-tosyl cAMP, 2) and tested for inotropic and chronotropic activities in vitro. Treatment of 2 with excess alkyl halides and sodium hydride followed by detosylation with aqueous NaOH readily gave N6,N6-dialkyl cAMPs (3) in good yields. Various N6,N6-dialkyl cAMPs
由2'-Op-甲苯磺酰基cAMP(2'-O-甲苯磺酰基cAMP,2)合成了一系列新型的N6,N6-二烷基腺苷3',5'-环磷酸N6,N6-二烷基cAMPs)和体外变时性活动。用过量的卤代烷和氢化钠处理2,然后用NaOH水溶液脱甲苯磺酰化,很容易以高收率得到N6,N6-二烷基cAMPs(3)。通过烷基化,然后通过还原烷基化获得的N6-烷基-2'-O-甲苯磺酰基cAMPs(4)脱甲苯磺化,制备在N6-位(9-12)具有不同烷基的各种N6,N6-二烷基cAMPs(4)。氰基硼氢化钠在乙酸中或N6-甲基cAMP甲苯磺酸化的条件下,用乙醛将2与醛混合。简要讨论了脱苯甲基化的机理。在N6,N6-二烷基化衍生物中,N6 发现N6-二戊基(3f)和N6-乙基-N6-庚基(10e)衍生物表现出强的正性变力作用和弱的正变时性作用。讨论了烷基残基的位置和长度的构效关系。