4-O-tert-Butyldimethylsilyl Epi Lovastatin

Chemical Name: [1S-[1.alpha.(S*),3.alpha.,7.beta.,8.beta.(2S*,4S*),8a.beta.]]-2-Methyl-butanoic Acid 8-[2-[4-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]tetrahydro-6-oxo-2H-pyran-2-yl]ethyl]-1,2,3,7,8,8a-hexahydro-3,7-dimethyl-1-naphthalenyl Ester

Smile: O=C([C@H](C)CC)O[C@@H]1[C@@]([C@H]2CC[C@@H](OC3=O)C[C@H](C3)O[Si](C)(C)C(C)(C)C)([H])C(C=C[C@@H]2C)=C[C@H](C)C1