Syntheses and Cytotoxicity of (R)- and (S)-7-Methoxycryptopleurine
摘要:
Two efficient protocols are described for the transformation of a key chiral homoallyllic sulfinamine intermediate in four steps into enantioenriched 7-methoxycryptopleurine. While one of the protocols relied on a rhodium catalyzed linear hydroformylation process, the alternative approach was based on a ring-closing metathesis from the corresponding N-allyl-sulfinamine. The cytotoxic evaluation of both enantiomers of the target compound demonstrated that the (R)-compound is much more potent than its antipode against the four cancer cell lines examined.
Short asymmetric synthesis of phenanthroindolizidines through chiral homoallylic sulfinamines
作者:Cintia Anton-Torrecillas、Jose C. Gonzalez-Gomez
DOI:10.1039/c4ob01133c
日期:——
An expeditious synthesis of enantioenriched phenanthroindolizidines has been achieved using tert-butylsulfinamide as a chiral inductor and without any other protecting group.