Sz. Zhou et al., A PRACTICAL SYNTHESIS OF A-RING PRECURSORS FOR 19-NOR-1-ALPHA,25-DIHYDROXYVITAMIN D-3 ANALOGS, Tetrahedron letters, 37(42), 1996, pp. 7637-7640
A convergent, more practical route to the A-ring precursors 3 and 5 st
arting from enantiopure (2S,4S)-1,2:4,5-diepoxypentane (11) is describ
ed. Copyright (C) 1996 Elsevier Science Ltd