| http://www.w3.org/ns/prov#value | - (d) for those compounds wherein Y is a cyano radical and X is a direct bond, the reaction of a nitrile of the formula XI or XII with a base, for example sodium hydride or n-butyl-lithium, and a halogeno compound of the formula Z.CR3 R4 R5 or R1 R2 CH.Z respectively, wherein Z has the meaning defined above; or
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