... Tetrahedron Letters. Volume 37, Issue 41, 7 October 1996, Pages 7403–7406. ... 1. T. Sugahara, K. Ogasawara; Tetrahedron Lett., 37 (1996), pp. 205–208. ... Pertinent reviews, see: ,in: J. ApSimon (Ed.), The Total Synthesis of Natural Products, Vol. 2, John Wiley, New York (1973), pp ...