| http://www.w3.org/ns/prov#value | - he protecting group is a trityl group, deprotection can also be carried out using an acid. [0236] In this case, the following solvents are used, for example, aromatic hydrocarbons such as benzene, toluene and xylene; halogenated hydrocarbons such as methylene chloride, chloroform, carbon tetrachloride, 1,2-dichloroethane, chlorobenzene and dichlorobenzene; alcohols such as methanol, ethanol, isopr
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