Oxygen-17 and carbon-13 nuclear magnetic resonance spectra of thiophene- and pyrrole-2-carboxaldehyde condensation products prepared from ephedrine derivatives
1990 ◽
Vol 27
(7)
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pp. 1853-1855
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1967 ◽
Vol 89
(3)
◽
pp. 706-707
◽
1962 ◽
Vol 237
(1)
◽
pp. 176-181
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1969 ◽
Vol 17
(9)
◽
pp. 1821-1826
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1967 ◽
Vol 32
(2)
◽
pp. 466-468
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