Antitumor activity of isochromanyltropolones.
作者:Masatoshi Yamato、Tadataka Ishikawa、Shigetaka Ishikawa、Kuniko Hashigaki
DOI:10.1248/cpb.31.2952
日期:——
The reaction of 1-ethoxyisochroman (1) with 4-isopropyltropolone (2) (hinokitiol, β-thujaplicin) afforded 3-(1-isochromanyl)-6-isopropyltropo-lone (3). Compound 3 exhibited a potent inhibitory property against KB cell multiplication in vitro and antitumor activity against mouse leukemia P388 in vivo. On the other hand, 2 did not exhibit the antitumor activity in the in vivo system. In analogy with 1, the reaction of benzaldehyde diethyl acetal with 2 afforded 3-(α-ethoxybenzyl)-6-isopropyltropolone (7) and α, α-bis (6-iso-propyltropolon-3-yl) toluene (8). Compound 8 exhibited very potent antitumor activity.
1-乙氧基异色满(1)与4-异丙基托酮(2)(雪松酮,β-雪松酮)反应生成3-(1-异色满基)-6-异丙基托酮(3)。化合物3在体外对KB细胞增殖表现出强效抑制作用,并在体内对小鼠白血病P388显示出抗肿瘤活性。另一方面,化合物2在体内系统中没有表现出抗肿瘤活性。类似于化合物1,苯甲醛二乙缩醛与化合物2的反应生成3-(α-乙氧基苄基)-6-异丙基托酮(7)和α,α-双(6-异丙基托酮-3-基)甲苯(8)。化合物8表现出很强的抗肿瘤活性。