prov:value
| - substituted or unsubstituted heterocyclyl, containing from 5 to about 36 total nuclear carbon and heteroatoms and preferably comprising one ore more rings comprised of 5 or 6 nuclear carbon and heteroatoms such as N, S, P or 0, for example, pyridyl, methylpyridyl, N-morpholino, dimethylaminopyridyl, methoxypropylpyridyl, oxazolyl, imidazolyl, pyrazolyl, quinolyl, thiazinyl, furanyl, pyranyl, and d
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