Coumarins of Ferula kopetdaghensis and the structure of kopeolin and kopeoside
SummaryThe roots ofFerula kopetdaghensis Eug. Kor. have yielded five coumarins — umbelliferone and four new compounds (kopetin, kopeodin, kopeolin, and kopeoside).On the basis of NMR, mass, and IR spectroscopy, derivatives, and transformation products, the structures of two of the new coumarins kopeolin and kopeoside have been established. It has been shown that kopeolin is a derivative of farnesiferol C and kopeoside is kopeolin 3-O-β-D-glucoside.
Zur Kenntnis der Sesquiterpene und Azulene. 127. Mitteilung. Über die Inhaltsstoffe der Asa foetida II. Farnesiferol B und C
Structures III and XXV have been derived on the basis of degradative work and physical evidence for Farnesiferol B and C, two isomeric C24H30O4 compounds previously isolated from Asa foetida (Umbelliferae).
Archaeological Survey of Dangoyama Kofun by 3DGPR
We presented a three-dimensional ground penetrating radar (3DGPR) system for the archeological investigation in a harsh site, where we have to deal with many trees and/or great topographic variations. This system consists of a commercial GPR system with a laser positioning system. With this system, we can move the GPR antenna freely, on which a positioning detector can record accurate position for each GPR data trace. We applied our 3DGPR system at Dangoyama Kofun, a burial mound, in Fukushima prefecture, Japan. A lot of trees and bushes covered the survey area and cannot be cut. We acquired six datasets in two days in this area. We successfully imaged the boundary between the original surface of the burial mound and the covering soil clearly at about 0.3 m depth around the mound. Furthermore, we found some strong reflections appeared at 0.8 m depth in the top area of the mound, which can be from the artificial parts of the burial mound. The results would greatly aid the following archaeological excavation. In addition, we compared the non-interpolated depth slice with interpolated depth slice at same position and demonstrated that the interpolation process on threedimensional GPR data may introduce some artifacts which might mislead our interpretation.