00380nam a2200109Ia 4500008004100000022001400041040001100055100002400066245012800090260003500218300001700253251112s9999||||xx |||||||||||||| ||und||  a0040-4039  aCNCLSA  aSir Robert Robinson 0aTetrahedron LettersbThe International Journal For the Rapid Publication of Preliminary Communications in Organic Chemistry  c1988bpergamon pressaNew York  aP. 3101-3904