详细介绍了CC-1065和Duocarmycin烷基化亚基的1,2,9,9a-四氢环丙烷[ c ]苯并[ e ]吲哚-4-酮(CBI)类似物的短时不对称合成,该合成方法采用了有效的酶促脱对称反应。使用市售的Pseudomonas sp。制备前手性二醇12。脂肪酶。旋光性单乙酸酯(S)-13具有出色的转化率(88%)和旋光纯度(99%ee),可作为制备CBI任一对映异构体的中间体。同样,假单胞菌sp。脂肪酶解决了外消旋中间体19,以良好的转化率和光学纯度(99%ee)提供先进的CBI中间体,并提供了制备光学活性CBI衍生物的替代方法。
The solvolysis of N-acetoxy-1-N-acetylaminonaphthalene and N-acetoxy-2-N-acetylaminonaphthalene: divergent chemistry and mutagenic activity
作者:Graham R. Underwood、Catherine M. Davidson
DOI:10.1039/c39850000555
日期:——
Upon solvolysis in neutral 40% aqueous acetone, N-acetoxy-1-N- and N-acetoxy-2-N-acetylaminonaphthalene exhibit completely different modes of reaction; the former reacts with nitrenium ion formation, while the latter undergoes acyl oxygen scission.