Table 3.
Marine natural product structural revisions of substituents (2005–2010).a
Proposed Structure | Initial Structure Determination Method | Revised Structure | Structure Revision Method |
---|---|---|---|
![]() Almazole D31 (1996) Red alga |
Comparison |
![]() |
Total Synthesis32 |
![]() Alcyonin33 (1988) |
MS NMR |
![]() |
Total Synthesis34 |
![]() hydroxy-bromosphaerodiol B35(1987) Bacterium |
MS |
![]() |
X-ray36 |
![]() Bromoditerpene35 (1987) Red alga |
HR-MS 1H NMR |
![]() |
X-ray36 |
![]() Perthamide C37 (2009) Sponge |
J-based Deriv. |
![]() |
Partial Synthesis Comparison38 |
![]() Eudistomidin B175 (1990) Tunicate |
NOE CD |
![]() |
Total Synthesis176, 177 |
![]() Psammaplin I178(2003) Sponge |
IR 13C NMR |
![]() |
MS Mol. Mod.179 |
![]() 11-acetoxy-4-deacetoxyasbestinin F172(1994) Coral |
MS |
![]() |
Deriv. NMR171 |
![]() Plakevulin A180(2003) Sponge |
Contamination |
![]() |
Total Synthesis181 |
The year in which the initial structure was published is in parentheses. Only the structure determination methods used for the portion of the structure that is erroneous are mentioned in this table. Mol. Mod. = use of geometry optimized structure. Deriv. = derivatization.