METHOD FOR INTRODUCING SUBSTITUENT INTO alpha,beta-UNSATURATED KETONE AND METHOD FOR SYNTHESIZING PROSTAGLANDIN USING THE SAME
申请人:NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGY
公开号:US20210355061A1
公开(公告)日:2021-11-18
The present invention provides a method for introducing substituents into the α-position and the β-position of an α,β-unsaturated ketone, which not only can be used for the synthesis of a prostaglandin by a three-component coupling process, but also enables synthesis of a prostaglandin in a high yield by one-pot operation without requiring the use of a large excess amount of any of the three components required for the synthesis or using a highly toxic heavy metal as a catalyst or a solvent that is highly toxic to living bodies, and a method for synthesizing a prostaglandin using the same technical means.
The method for introducing substituents into an α,β-unsaturated ketone according to the present invention is a method for introducing substituents into the carbon at the α-position and the carbon at the β-position of an α,β-unsaturated ketone, including: a first step of mixing alkyllithium and trialkylalkenyl tin in which tin atom binds to the vinyl position of the alkenyl group; a second step of mixing the mixture of the first step and dialkylzinc; a third step of mixing the mixture of the second step and an α,β-unsaturated ketone; and a fourth step of mixing the mixture of the third step and a trifluoromethanesulfonate compound.
本发明提供了一种将取代基引入α,β-不饱和酮的α位和β位的方法,不仅可用于通过三组分偶联过程合成前列腺素,还能够通过一锅法高产率合成前列腺素,而无需使用大量超量的三种合成所需组分之一,也无需使用高毒性重金属作为催化剂或对生物体高毒的溶剂,并提供了一种利用相同技术手段合成前列腺素的方法。
根据本发明,将取代基引入α,β-不饱和酮的方法是一种将取代基引入α,β-不饱和酮的α位和β位碳的方法,包括:第一步,混合烷基锂和三烷基烯基锡,其中锡原子与烯基团的乙烯位结合;第二步,混合第一步的混合物和二烷基锌;第三步,混合第二步的混合物和α,β-不饱和酮;第四步,混合第三步的混合物和三氟甲磺酸盐化合物。