00359nam a2200097Ia 4500008004100000040001100041100002400052245012800076260004000204300001700244251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aSir Robert Robinson 0aTetrahedron LettersbThe International Journal For the Rapid Publication of Preliminary Communications in Organic Chemistry  cMay, 1974bPergamon PressaNew York  aP. 1723-2028