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Configurational Study of Diastereoisomeric Royleanone Diterpenoids From Salvia concolor
| Content Provider | SAGE Publishing |
|---|---|
| Author | Díaz-Fernández, Mónica Salazar, María I. Joseph-Nathan, Pedro Burgueño-Tapia, Eleuterio |
| Copyright Year | 2019 |
| Abstract | The known diterpenoids horminone (1) and taxoquinone (2) as a mixture, and pure 6,7-dehydroroyleanone (7) were isolated from the aerial parts of not yet studied Salvia concolor Lamb. Although 1 and 2 are known, the 1H Nuclear Magnetic Resonance (NMR) data of their acetyl derivatives 4 to 6 are only partially described. Moreover, the 13C NMR data assignments for 4 and 6 show some inconsistencies and reveal better agreement with those we obtained for diastereoisomeric 3 and 5. Since stereochemical aspects were in doubt, it was considered as mandatory to unambiguously determine the absolute configuration of 3 to 6 using vibrational circular dichroism spectroscopy, which then allowed the complete 1H and 13C NMR chemical shift assignments of 4 to 6. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/1934578X19862650?download=true |
| ISSN | 1934578X |
| Issue Number | 7 |
| Volume Number | 14 |
| Journal | Natural Product Communications (NPX) |
| e-ISSN | 15559475 |
| DOI | 10.1177/1934578X19862650 |
| Language | English |
| Publisher | Sage Publications CA |
| Publisher Date | 2019-07-23 |
| Publisher Place | Los Angeles |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2019 |
| Subject Keyword | Salvia concolor absolute configuration diastereoisomeric abietanes vibrational circular dichroism NMR assignments |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Drug Discovery Pharmacology Complementary and Alternative Medicine |
