00354nam a2200097Ia 4500008004100000040001100041100002400052245012800076260003500204300001700239251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aSir Robert Robinson 0aTetrahedron LettersbThe International Journal For the Rapid Publication of Preliminary Communications in Organic Chemistry  c1998bPergamon PressaNew York  aP. 1723-2028