J. Boukouvalas et al., FURANOLATE-BASED STRATEGY FOR SEQUENTIAL 2,3,4-TRISUBSTITUTION OF BUTENOLIDE - TOTAL SYNTHESIS OF NOSTOCLIDE-I AND NOSTOCLIDE-II, Tetrahedron letters, 35(43), 1994, pp. 7897-7900
The first synthesis of nostoclide I (1a) and II (1b) has been accompli
shed in a concise, fully regio- and stereocontrolled manner by sequent
ial 2,3,4-trisubstitution of butenolide (6) using 2-furanolates as key
intermediates.