... It was noteworthy that Kobayashi(11d) reported a conceptionally similar strategy to diastereoselectively install the opposite ... confirmed the relative and absolute configurations of PsB and PsC and provided expedited and practical chemical access to ... activities of plant P. ...
[Cohen, Theodore; Sherbine, James P.; Matz, James R.; Hutchins, Robert R.; McHenry, Barry M.; Willey, Paul R. Journal of the American Chemical Society, 1984 , vol. 106, # 11 p. 3245 - 3252]