I. Paterson et al., THE TOTAL SYNTHESIS OF SWINHOLIDE-A .1. A STEREOCONTROLLED SYNTHESIS OF A C-19-C-32 SEGMENT, Tetrahedron, 51(34), 1995, pp. 9393-9412
The C-19-C-32 segment 10 of swinholide A was prepared in 15 steps (8%
yield, 82% ds) from (+/-)-16. Key steps include (i) the Sharpless epox
idation, 16 --> 17, (ii) the acetal allylation, 15 --> 23, (iii) the a
nti aldol addition, 13 + 14 --> 12, and (iv) the alkene hydroboration,
30 --> 31.