Rpc. Cousins et al., ENZYMATIC RESOLUTION OF OXATHIOLANE INTERMEDIATES - AN ALTERNATIVE APPROACH TO THE ANTIVIRAL AGENT LAMIVUDINE (3TC(TM)), Tetrahedron : asymmetry, 6(2), 1995, pp. 393-396
A number of commercially available lipases and proteases was screened
for the ability to hydrolyse enantioselectively racemic oxathiolane 2.
Mucor miehei lipase was identified as the most efficient biocatalyst.
Bioconversion of 2 afforded enantiomerically-enriched residual ester
of the correct absolute stereochemistry, (-)-2R for subsequent synthes
is of the anti-viral agent lamivudine, (3TC(TM)).