An efficient, economical synthesis of the novel anti-tumor agent CPI-613

…, D Gupta, R Shorr, R Rodriguez

Index: Gibson, Frank S.; Gupta, Deepak; Shorr, Robert; Rodriguez, Robert Organic Process Research and Development, 2011 , vol. 15, # 4 p. 855 - 857

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Abstract

An efficient and practical synthesis of the novel anti-tumor compound 6, 8-dithiobenzyl octanoic acid, CPI-613 (2), was developed and executed on a practical scale. CPI-613 can be made in a single vessel from (±)-lipoic acid (1) via reductive opening of the disulfide ring followed by benzylation of the sulfhydryls with benzyl bromide. CPI-613 was isolated by simple crystallization in high yield and purity. The process is scaleable and has been ...