| http://www.w3.org/ns/prov#value | - The alkylating agent may be any alkylating agent such as an alkylating agent of the formula R9X, where X is selected from I, Br, Cl, trifluoromethanesulphonyloxy, and R9 is an alkyl group which can be added to compound 3 in the synthesis of the quaternary compound 5.
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