A novel synthesis of Rhein (2), the active metabolite of the anti-osteoarthritic drug Diacetyl Rhein (1) has been achieved. Key steps include stereospecific olefination of aldehyde 21 with novel phosphonate 28 and the cyclisation of acid 31 to produce anthracene 32.
作者:Peter T. Gallagher、Terry A. Hicks、Andrew P. Lightfoot、W.Martin Owton
DOI:10.1016/s0040-4039(00)76534-8
日期:1994.1
A novel synthesis of Rhein (2), the active metabolite of the anti-osteoarthritic drug Diacetyl Rhein (1) has been achieved. Key steps include stereospecific olefination of aldehyde 21 with novel phosphonate 28 and the cyclisation of acid 31 to produce anthracene 32.
Neelakantan et al., Proceedings - Indian Academy of Sciences, Section A, 1959, vol. <A> 49, p. 234,239