The disclosure provides processes for synthesizing Compound I, and pharmaceutically acceptable salts thereof.
该披露提供了合成化合物I及其药用可接受的盐的过程。
Relative Stabilities of Spirocyclopropanated Cyclopropyl Cations
作者:Sergei I. Kozhushkov、Thomas Späth、Monica Kosa、Yitzhak Apeloig、Dmitrii S. Yufit、Armin de Meijere
DOI:10.1002/ejoc.200300440
日期:2003.11
the ring-retained product 25 (66%) along with the ring-opened product 26 (33%). Apparently, an increasing number of spiro-annelated three-membered rings stabilizes a cyclopropyl cation against ringopening under solvolysis conditions. The rate of solvolysis, however, is only slightly affected by this spiroannelation, as the rate coefficient for the triflate 3 in sodium acetate-buffered methanol was determined