One-step, stereoselective synthesis of octahydrochromanes via the Prins reaction and their cannabinoid activities
作者:Shuneize Slater、Pradeep B. Lasonkar、Saqlain Haider、Moneerah J. Alqahtani、Amar G. Chittiboyina、Ikhlas A. Khan
DOI:10.1016/j.tetlet.2018.01.040
日期:2018.2
Novel, functionalized octahydrochromane derivatives were synthesized in a single step via the Prins reaction. Enantiomerically pure (+)-isopulegol was reacted with benzaldehyde to stereoselectively yield the corresponding octahydro-2H-chromen-4-ol derivative containing five stereocenters. A total of 10 compounds were synthesized by altering the enantiomer of isopulegol and the substituted benzaldehyde
通过Prins 反应一步合成了新型官能化八氢色烷衍生物。对映体纯的(+)-异胡薄荷醇与苯甲醛反应,立体选择性地产生相应的含有五个立体中心的八氢-2H-苯并-4-醇衍生物。通过改变异胡薄荷醇和取代的苯甲醛的对映体,总共合成了 10 种化合物,并针对大麻素受体亚型 CB1 和 CB2在体外筛选了所得的对映体纯八氢色烷。发现在八氢色烷支架的 C4 位 [(+)- 3c 、(-)- 3c 、(-)- 7c 、(-)- 9c和 (-)- 11c ] 处含有烯烃的化合物表现出合理的位移[ 3 H] CP55,940 来自 CB 受体,而相应的羟基类似物 [(+)- 3a 、(+)- 3b 、(−)- 3a 、(−)- 3b和 (+)- 5a ] 具有非常影响很小或没有影响。