... Volume 41, Issue 12, 1985, Pages 2435-2440. ... Download full text in PDF. Tetrahedron Vol 41, No 12, pp 2435 to 2440, 1985 Printed in Great Britain 0040-4020/85 $3 00 ... purified by P.1.C. (CC1ethy1 acetate, 9 1) and gave the (Z) isomer of compound (11), diester (12) (2%). 62.8 ...