A method comprising steps of:
a step of adding a protective group to Citramalic Acid to provide Dioxolanone, wherein the protective group protects Oxycarboxylic Acid in decarboxylation;
a step of decarboxylating Dioxolanone to displace a carboxyl group of Dioxolanone with a halogen having a leaving group;
a step of displacing the leaving group with -X 1-R 6-R 7 group, wherein the displacement of the leaving group occurs before and after the protective group leaves Dioxolanone, thereby providing Carboxylic Acid; and
a step of reacting Carboxylic Acid with a compound having a structure with Formula XIII.
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