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Figure 6
Four possible orientations of the C=O groups for diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate derivatives with a ring substituent (R) at C4. |
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Figure 6
Four possible orientations of the C=O groups for diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate derivatives with a ring substituent (R) at C4. |