Synthesis and Evaluation of Novel Rhodacyanine Dyes That Exhibit Antitumor Activity
作者:Masayuki Kawakami、Keizo Koya、Toshinao Ukai、Noriaki Tatsuta、Akihiko Ikegawa、Keizo Ogawa、Tadao Shishido、Lan Bo Chen
DOI:10.1021/jm9702692
日期:1997.9.1
synthesized and evaluated as novel antitumor agents. Rhodacyanine dye consists of two heteroaromatic rings such as thiazoles at both termini of the conjugate systems and 4-oxothiazolidine (rhodanine) in the middle of it. Compounds with such a unique double-conjugate structure were found to inhibit the growth of several tumor cell lines, such as colon carcinoma CX-1, and to exhibit relatively low toxicity against
合成了若丹菁染料和几种类似的离域亲脂性阳离子(DLC),并将其评估为新型抗肿瘤剂。罗丹菁染料由两个杂芳族环组成,例如在共轭体系两个末端的噻唑和中间的4-氧噻唑烷(若丹宁)。发现具有这种独特双共轭结构的化合物可抑制几种肿瘤细胞系(例如结肠癌CX-1)的生长,并且对正常肾细胞系CV-1的毒性相对较低(例如,IC50(CX- 1)= 50 nM,IC50(CV-1)= 17.3 microM;对于化合物5)的选择性指数= 346。还发现这些化合物在荷瘤裸鼠模型中是有效的(例如,针对人黑素瘤LOX;化合物5的T / C(%)= 168)。罗丹菁的结构修饰,包括删除涉及花青素共轭体系的杂芳环,并用结构上相关的部分(例如4-氧代咪唑烷或4-氧代-1,3-二硫杂环戊烷)取代若丹宁,会导致选择性和/或活性损失。我们目前的结构活性研究表明,具有罗丹宁部分的双共轭体系对于罗丹菁染料的选择性活性至关重要,我们发