Stereospecific Tandem Michael Addition-Aldol Condensation-Lactonization Reactions: A Route to Spirocyclopentenolactone - Kittivarapong, Sirichai; Rajviroonkit, Shuleewan; Siwapinyoyos, Tiwa; Thebtaranonth, Chachanat; Thebtaranonth, Yodhathai (Synthesis, 1995)