A DNA crosslinking approach, which is distinct but related to the double alkylation by mitomycin C, involving a novel electrophilic spiro‐cyclopropane intermediate is hypothesized. Rational design and substantial structural simplification permitted the expedient chemical synthesis and rapid discovery of MTSB‐6, a mitomycin C analogue which is twice as potent as mitomycin C against the prostate cancer
假设有一种 DNA 交联方法,该方法与丝裂霉素 C 的双烷基化不同,但涉及新型亲电螺环丙烷中间体。合理的设计和实质性的结构简化使得 MTSB-6 的化学合成和快速发现成为可能,MTSB-6 是一种丝裂霉素 C 类似物,其抗前列腺癌细胞的效力是丝裂霉素 C 的两倍。与丝裂霉素 C 相比,MTSB-6 显示其对非癌前列腺细胞的选择性作用有所改善。这一假设驱动的发现开辟了新的但可合成的丝裂烯结构空间,用于发现更有效且毒性更低的治疗候选药物。