| http://www.w3.org/ns/prov#value | - Cl -- R1 -- X' wherein X' represents Br or OTs (Ts stands for a tosyl group), and R1 represents an alkylene group having 3 to 6 carbon atoms, and catalytically reducing the reaction product in a usual way, e.g., in the presence of a catalyst such as palladium or Raney nickel.
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