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求助有机化学翻译一小段
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For example, more variation in NP than in CC or DC′ corresponds to variation in electronic character of sp3 carbon atoms connected to three or four other heavy atoms (ssssC, sssCH). In contrast, CC and DC′ express more of their variation around less-connected sp3 carbons (sCH3, ssCH2) or sp2 carbons (aaCH, aaaC). Often, descriptors such as E states are used to build predictors of compound performance using statistical learning methods (58, 59). Here, these examples illustrate how quantitative, yet chemically intuitive, information can be used to guide chemists building discovery collections. |
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