Stereoselective Synthesis of Nonpsychotic Natural Cannabidiol and Its Unnatural/Terpenyl/Tail-Modified Analogues
作者:Radhika Anand、Pankaj Singh Cham、Veeranjaneyulu Gannedi、Sumit Sharma、Mukesh Kumar、Rohit Singh、Ram A. Vishwakarma、Parvinder Pal Singh
DOI:10.1021/acs.joc.1c02571
日期:2022.4.1
Here, we report a three-step concise and stereoselective synthesis route to one of the most important phytocannabinoids, namely, (−)-cannabidiol (-CBD), from inexpensive and readily available starting material R-(+)-limonene. The synthesis involved the diastereoselective bifunctionalization of limonene, followed by effective elimination leading to the generation of key chiral p-mentha-2,8-dien-1-ol
在这里,我们报告了一种由廉价且易于获得的起始材料R -(+)-柠檬烯制成的最重要的植物大麻素之一,即 (-)-大麻二酚 (-CBD) 的三步简明立体选择性合成路线。该合成涉及柠檬烯的非对映选择性双功能化,然后有效消除导致关键手性p -mentha-2,8-dien-1-ol 的产生。手性p-mentha-2,8-dien-1-ol 在银催化下与 Olivetol 偶联提供了区域特异性 (-)-CBD,这与报道的混合物相反。新开发的方法进一步扩展到其结构类似物大麻素和其他尾/萜基修饰的类似物。此外,它的相反异构体(+)-大麻二酚也成功地由S -(-)-柠檬烯合成。