Bulk Structure Elucidation: Computational Spectroscopy of Ionic Liquids for Bulk Structure Elucidation (Adv. Theory Simul. 10/2018)

Structure Elucidation of a New

In the course of our continuing search for novel antimicrobial agents,1-4) we have isolated a novel diketopiperazine, Sch 725418 (1), from culture Micromonospora sp. In this paper, we describe the isolation and structure elucidation of 1 using high resolution ESI-MS and extensive NMR spectroscopic analysis. Fermentation studies of the SP culture 94-00889 were carried out in shake flasks. Stock ...

Structure Elucidation and Biological Properties

mycelium and aerial hyphae. Spiral spore chains of 10 to 30 or more spores were observed at the tips of aerial hyphae on the various ISP agar media. Fragmentation of substrate mycelium, sclerotium and sporangia-like vesicles was not observed. The cultural characteristics of strain A-230 on various agar media are summarized in Table 1. The physiological properties and the utilization of carbohyd...

Structure elucidation and chemistry of novel diterpenoids from Euphorbia plants of Iran

Plants of the genus Euphorbia have been investigated for different bioactive natural products. I have isolated several new and bioactive diterpenoids from different species of Euphorbia of Iran with myrsinane type skeleton. The structure of the compounds was determined using high resolution mass spectroscopy, 1 D and 2 D NMR spectral data. The stereochemistry of the diterpenoids was determined ...

Domain structure elucidation of human decorin glycosaminoglycans.

The structure of the GAG (glycosaminoglycan) chain of recombinantly expressed decorin proteoglycan was examined using a combination of intact-chain analysis and domain compositional analysis. The GAG had a number-average molecular mass of 22 kDa as determined by PAGE. NMR spectroscopic analysis using two-dimensional correlation spectroscopy indicated that the ratio of glucuronic acid to iduroni...

structure elucidation of water-soluble polysaccharides of trehala manna