Structurally diverse bicyclo[3.3.0]octanes were prepared and tested for their biological activity. Both the antiproliferative activity and the results of phenotypic characterization varied with the substitution patterns. Two derivatives displayed high inhibitory (IC50 ⩽3 μM) activity against the L-929 cell line, but differed in their mode of action. A cluster analysis with impedance profiling data
Chelation-controlled stereoselectivity in the alkyllithium cleavage of an allylic ether. The synthesis of , -2,6-(hydroxymethyl)bicyclo[3.3.0]octa-3,7-diene.
作者:Donald G. Farnum、Theresa Monego
DOI:10.1016/s0040-4039(00)81656-1
日期:1983.1
Attempted anionic [2,3] sigmatropic rearrangement of was circumvented by an SNi' displacement producing tricyclic ether . -Butyllithium and lithium methanol dianion readily attacked in an SN2' fashion to afford alcohol and the title compound, respectively.
尝试通过产生三环醚的S N i'置换来避免阴离子的[2,3]σ重排。-丁基锂和甲醇锂二价阴离子容易以S N 2'的形式侵蚀,分别得到醇和标题化合物。