| http://www.w3.org/ns/prov#value | - The unsaturated ester of Formula CXXX is then condensed with a pyrimidine or purine base, or a heterocyclic isostere thereof, in a Michael addition to afford the compound of Formula CXXXI. This compound, in turn, is reduced by treatment with a reducing agent, such as lithium borohydride or lithium aluminum hydride, to the hydroxymethyl derivative of Formula CXXXII.
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