Studies on the synthesis of compounds related to adenosine 3',5'-cyclic phosphate. V. Synthesis and cardiac effect of N6-alkyladenosine 3',5'-cyclic phosphates and their 8-benzylthio derivatives.
作者:SHIGEHIRO KATAOKA、JUNKO ISONO、NOBUYUKI YAMAJI、MOTOHIKO KATO、TOMIE KAWADA、SHOICHI IMAI
DOI:10.1248/cpb.36.2212
日期:——
A series of N6-alkyladenosine 3', 5'-cyclic phosphates (N6-alkyl cAMPs) (3) and N6-alkyl-8-benzylthio cAMPs (4) was synthesized from cAMP (1) and 8-benzylthio cAMP (2) by means of a one-pot reaction. This reaction proceeded by reductive alkylation in acetic acid with aldehydes and sodium cyanoborohydride. These cAMP derivatives were evaluated for inotropic and chronotropic effects on the isolated guinea pig papillary muscle and right atria. Several N6-alkyl cAMPs (3) were surprisingly more active than compounds 4 in these actions. Among them, N6-hexyl cAMP (3f) and M6-heptyl cAMP (3g) showed strongly positive inotropic effects (PIE) and moderately negative chronotropic effects.
一系列N6-烷基腺苷3',5'-环磷酸酯(N6-烷基cAMPs)(3)和N6-烷基-8-苄硫基cAMPs(4)通过一锅法反应从cAMP(1)和8-苄硫基cAMP(2)合成。该反应在乙酸中通过醛和氰基硼氢化钠的还原烷基化进行。这些cAMP衍生物被评估对离体豚鼠乳头肌和右心房的变力和变时效应。几种N6-烷基cAMPs(3)在这些作用上出乎意料地比化合物4更活跃。其中,N6-己基cAMP(3f)和N6-庚基cAMP(3g)显示出强烈的正性变力效应和中等程度的负性变时效应。