... b c d e -% C0CH3 CH, -@OCH, COCH, Products from Furans, 13 Fmoc-L-Ala Troc-L-Ala ZL-Phe Z- L -Ala- L -ALa Synthesis of 6-Acyloxy and 6-Alkoxy Derivatives of 2H-Pyran-3(6H)-ones *) Violetta Constantinou-Kokotoua, George Kokotosb and Minas P. Georgiadis*' f ... Chem. 47 (1982) 3054. 12) V. Constantinou-Kokotou, Ph. D. Thesis, Agricultural Univer- sitv of Athens. 1989. ... [ 155/90] 19) G. Kokotos, Synthesis, 1990, 299. Liebigs Ann. Chem. 1991, 151 -154