参考标题:Addition Of Ester Enolates To N-Alkyl-2-Fluoropyridinium Salts: Total Synthesis Of (+/-)-20-Deoxycamptothecin And (+)-Camptothecin 作者:M.-Lluïsa Bennasar,Ester Zulaica,Cecília Juan,Yolanda Alonso,Joan Bosch |发布日期:2002.10.1 摘要:Dihydropyridones Or 2-Pyridones Have Been Prepared By Nucleophilic Addition Of Alpha-(Methylsulfanyl)Ester Enolates To N-Alkyl-2-Fluoropyridinium Salts, Followed By Acid Hydrolysis Or Oxidation With Concomitant Hydrolysis, Of The Intermediate 2-Fluoro-1,4-Dihydropyridine Adducts, Respectively. Addition Of The Enolate Derived From Isopropyl Alpha-(Methylsulfanyl)Butyrate To N-(Quinolylmethyl)-2-Fluoropyridinium
合成参考文献
参考文献:10.1055/s-0033-1338537 摘要:Silva A, Silva E, Varandas P. Developments in the Synthesis of 1,2-Dihydropyridines. Synthesis. 2013 Oct 23;45(22):3053–89. doi: 10.1055/s-0033-1338537.