Structures and chemistry of two new halogen-containing chamigrene derivatives from laurencia
✍ Scribed by Bruce M. Howard; William Fenical
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 191 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The ^1^H and ^13^C NMR spectra of the glabretal derivatives, 21,24‐epoxy‐3α, 7α, 21,23‐tetraacetoxy‐25‐hydroxy‐4α,4β,8β‐trimethyl‐14,18‐cyclo‐5α,13α,14α,17α‐cholestane and 21,23‐epoxy‐3α,7α,21,24,25‐pentaacetoxy‐4α,4β,8β‐trimethyl‐14,18‐cyclo‐5α,13α,14α,17α‐cholestane, obtained from an
We were initially mislead by such quasi-centrosymmetry, and it was only by carefully refining the analysis that all atoms could be correctly localized.
## Abstract Vermistatin (=(3__R__)‐4,6‐dimethoxy‐3‐{4‐oxo‐6‐[(1__E__)‐prop‐1‐en‐1‐yl]‐4__H__‐pyran‐3‐yl}‐2‐benzofuran‐1(3__H__)‐one; **1**) and two new vermistatin derivatives, compounds **2** and **3**, were isolated from the fungal strain __Guignardia__ sp. No. 4382 obtained from the South‐China