6-Methoxy-5-(pyridin-3-yl)picolinaldehyde
2-Methoxy-5-(pyridin-4-yl)isonicotinaldehyde
2-Methoxy-5-(pyridin-4-yl)nicotinaldehyde
6-Methoxy-5-(pyridin-3-yl)nicotinaldehyde
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