| http://www.w3.org/ns/prov#value | - Decomposition of the salt 70 with base liberates chiral compounds of formula 71. ##STR36## SCHEME 22: Alkylation of compounds of formula 25 with an allylic acetate in the presence of a suitable catalyst such as palladium tetrakis(triphenylphosphine) affords compounds of formula 74.
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