Unexpected diastereotopic behaviour in the ¹H NMR spectrum of 1,4-dihydropyridine derivatives triggered by chiral and prochiral centres
1,4-dihydropyridine derivatives constitute an important pharmacological group for the treatment of cardiovascular diseases. We have synthesised a series 4-(5'-nitro-2'-furyl)-1,4-dihydropyridine derivatives, which were characterised by ¹H-NMR. We have found that carboethoxy groups at the C-3 and C-5 on the 1,4-dihydropyridine ring show a much more complex signal in the ¹H NMR spectra, either when C-4 is a pseudo-prochiral or a chiral centre.
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Main Authors: | , , , , , |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2005
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000100018 |
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