Synthesis of the antiinflammatory prodrug RS-42169-14C
作者:Howard Parnes、Glenn T. Huang
DOI:10.1002/jlcr.2580360106
日期:1995.1
A facile synthesis of the antiinflammatory agent RS-42169-14C, based on a carbonation/cycloaddition sequence is described. The product was obtained in 36% yield from Ba14CO3 at a specific activity of 52 mCi/mmole. The design of the six step sequence was such that pure intermediates were isolated by extractive workup, and only a single chromatographic purification was required.