ENANTIOSELECTIVE SYNTHESIS OF 24,25-DIHYDROXY VITAMIN-D-3 NORTHERN PORTION FROM (S)-3-HYDROXY-2,2-DIMETHYLCYCLOHEXANE-1-ONE - REMOTE ASYMMETRIC INDUCTION IN AN ACID-CATALYZED CONJUGATE ADDITION
W. Stepanenko et J. Wicha, ENANTIOSELECTIVE SYNTHESIS OF 24,25-DIHYDROXY VITAMIN-D-3 NORTHERN PORTION FROM (S)-3-HYDROXY-2,2-DIMETHYLCYCLOHEXANE-1-ONE - REMOTE ASYMMETRIC INDUCTION IN AN ACID-CATALYZED CONJUGATE ADDITION, Tetrahedron letters, 39(8), 1998, pp. 885-888
Enantioselective synthesis of building blocks, 2 and 16, for 24,25-dih
ydroxy- and 25-hydroxy vitamin D synthesis, respectively, from easily
accessible optically active hydroxy ketone 5, is described. (C) 1998 E
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