SYNTHESIS OF A C-14,C-15 DIHYDRO DERIVATIVE OF THE SOUTH HEXACYCLIC STEROID UNIT OF CEPHALOSTATIN-1 .2. SPIROKETAL SYNTHESIS AND STEREOCHEMICAL ASSIGNMENT BY NMR-SPECTROSCOPY
S. Bhandaru et Pl. Fuchs, SYNTHESIS OF A C-14,C-15 DIHYDRO DERIVATIVE OF THE SOUTH HEXACYCLIC STEROID UNIT OF CEPHALOSTATIN-1 .2. SPIROKETAL SYNTHESIS AND STEREOCHEMICAL ASSIGNMENT BY NMR-SPECTROSCOPY, Tetrahedron letters, 36(46), 1995, pp. 8351-8354
Transformation of aldehyde 3 into 2, a C-14',C-15' dihydro analog of t
he ''South'' hexacyclic spiroketal of cephalostatin 11 is described. T
he stereochemistry of 2 was elucidated by NMR spectroscopy.