prov:value
| - lecules in which at least one C-atom is substituted by a heteroatom such as N, O, P, S. Molecules, which may be mentioned, for example, are pyrolyl, furyl, pyridyl, and imidazolyl. (C4-C19)-heteroaralkyl are heteroarylic species bonded via a (C1-C8)-alkyl radical with the molecule in question, such as furfuryl, pyrolylmethyl, pyridylmethyl, furyl-1-, 2-ethyl or pyrolyl-1-, 2-ethyl.
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