I isolated a mixture of three compounds from the stem bark of a plant . I have NMR, Mass spec, IR, and UV data. There are a lot of things I can't make meaning out of. Kindly help me with the elucidation of the structures
A natural products expert may prove me wrong here but I think that you will struggle to identify these products, unless they are all known. You seem to have nominal mass MS spectra whereas high res would be much better as this would allow you to identify a small number of molecular formulae. The weak NMR spectra are of a mixture of unknown compounds. For some reason, your HMBC data only covers 1ppm (~2.5-3.5ppm) and misses any chance of long-range correlations from aromatic/olefinic protons. The HSQC indicates some interesting peaks which may guide you towards some structural features. Trying to separate the three compounds may help but it looks like you are struggling for material so this may not be possible.