Synthesis and biological evaluation of quinocarcin derivatives.
作者:Hiromitsu SAITO、Shigeru KOBAYASHI、Youichi UOSAKI、Akira SATO、Kazuhisa FUJIMOTO、Katunori MIYOSHI、Tadashi ASHIZAWA、Makoto MORIMOTO、Tadashi HIRATA
DOI:10.1248/cpb.38.1278
日期:——
Cyanation of quinocarcin readily opened the oxazolidine ring to provide DX-52-1 (2), which was a key compound in the synthesis of quinocarcin derivatives. Various electrophilic reactions toward aromatic ring of DX-52-1 were examined, and 10-substituted (e.g., halogen, nitro, formyl, cyano, hydroxy, etc.) analogs were prepared. Dehydrocyanation of the derivatives could be achieved to reproduce the oxazolidine ring upon treatment with HCl or AgNO3. 10-Chloride 10 and 10-bromide 11 were the most promising among the derivatives prepared. Antitumor activity of 10 was extended to B-16 melanoma.
喹诺卡星的氰化很容易打开恶唑烷环,得到 DX-52-1 (2),它是合成喹诺卡星衍生物的关键化合物。考察了DX-52-1对芳环的各种亲电反应,并制备了10个取代基(如卤素、硝基、甲酰基、氰基、羟基等)类似物。用 HCl 或 AgNO3 处理后,可以实现衍生物的脱氢氰化以复制恶唑烷环。 10-氯化物10和10-溴化物11是所制备的衍生物中最有前途的。 10 的抗肿瘤活性扩展到 B-16 黑色素瘤。