581069-45-6Relevant articles and documents
Efficient enantioselective total synthesis of (-)-epipodophyllotoxin
Engelhardt, Ulrike,Sarkar, Arunkanti,Linker, Torsten
, p. 2487 - 2489 (2007/10/03)
In only twelve steps the total synthesis of (-)-epipodophyllotoxin (2) has been completed starting from commercially available piperonal (1). The first stereo-center was formed under auxilary control, while the following epoxidation and radical cyclization proceeded with outstanding diastereoselectivity, which enabled the target molecule to be isolated in an overall yield of 30% and with 97% ee.