Efficient Synthesis of Dichlorodenafil, an Unapproved Sildenafil Analogue Appearing in Non-prescription Supplements
作者:Jong Yup Kim、In Gyun Hwang、Jae Ho Oh、Il Hyun Kang、Sung Won Kwon、Deukjoon Kim
DOI:10.1248/cpb.c12-00907
日期:——
We have developed an efficient synthesis of dichlorodenafil (4), an unapproved sildenafil analogue isolated from dietary supplements. Our sequence employs POCl3-mediated chlorination of readily available chloroacetyl compound 7 followed by selective hydrolysis of the chloro-heterocycle function. Our synthesis confirms the structure of the illegal additive, and will provide regulatory agencies with ready access to authentic standard samples of dichlorodenafil (4) to aid in their mission to protect the public from unapproved and potentially harmful erectile dysfunction (ED) drug analogues that are added to herbal and dietary supplements without providing users with appropriate toxicological or pharmacological information.
我们开发出了一种高效合成二氯地那非(4)的方法,这是一种从膳食补充剂中分离出来的未经批准的西地那非类似物。我们的合成过程采用了 POCl3 介导的氯乙酰化合物 7 的氯化反应,然后选择性地水解氯代杂环功能。我们的合成证实了这种非法添加剂的结构,并将为监管机构提供获取真实的二氯地那非(4)标准样品的便利途径,以帮助他们保护公众免受未经批准且可能有害的勃起功能障碍(ED)药物类似物的侵害,这些类似物被添加到草药和膳食补充剂中,却未向用户提供适当的毒理学或药理学信息。