Reference

Content of catalpol in the drug Flos Verbasci

Content of catalpol in the drug Flos Verbasci. Swiatek, Lucjan; Adamczyk, Urszula (Inst. Badania Srodowiska, Bional. Akad. Med., Lodz, Pol.). Farm. Pol., 41(1), 19-21 (Polish) 1985. CODEN: FAPOA4. ISSN: 0014-8261. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Catalpol (I) [2415-24-9] was detd. in Flos verbasci exts. from blossoms of Verbascum thapsiforme and V. phlomoides) by spectrophotometry at 385 nm. The exts. from V. thapsiforme contained ~2-fold more of I and ~10-fold less aucuboside [479-98-1] than exts. from V. phlomoides. This should be considered when selecting Verbascum blossoms for extn.

Chemistry and stereochemistry of iridoids

Chemistry and stereochemistry of iridoids. VIII. Oxidation of the enol-ether function of catalpol derivatives to the lactone. Weinges, Klaus; Smuda, Hubert (Org.-Chem. Inst., Univ. Heidelberg, Heidelberg D-6900, Fed. Rep. Ger.). Liebigs Ann. Chem., (3), 227-30 (German) 1987. CODEN: LACHDL. ISSN: 0170-2041. DOCUMENT TYPE: Journal CA Section: 33 (Carbohydrates) Oxidn. of the catalpol derivs. I [R = Ac, CPh3; R1 = Ac, 3,4-MeO(AcO)C6H3CO] with NBS-Me2SO gave the bromo lactones II (R2 = Br) as a mixt. of diasteromers. Zn-AcOH redn. 109-99-9 and 2415-24-9 are just another two chemicals used in this study. of II (R2 = Br) gave II (R2 = H). .