DIE FLAVONOLGLYCOSIDE VONEUPHORBIA MYRSINITIS

Abstract

Ihre Isolierung und Identifizierung Mitteilung iiber die Flavonoide einheimischer EuphorbiaceenUV-Maxima der Glycoside und Aglyca aus E. rnyrsinitis ohne und rnit ionisierenden und komplexbildenden Zusatzen in Methanol (Mabry und Mitarb. (1970) Myr 1 Clycosid Aglycon MeOH 265,296 sh, 315 sh, 344 253 sh, 266, 294 sh, 322 sh, 367 NaOMe 273,325,389 281,316 sh, 422 (Zers.) AICI, 273,304,351,395 260 sh, 270,307,358,424 AICI,/HCI 274,301,351,395 256 sh, 269,305 sh, 357,417 NaOAc 273,318 sh, 382 276,307,391 NaOAc/H,BO, 265,319 sh, 345 268,297 sh, 320 sh, 369 Myr 2 Clycosid Agl ycon MeOH 265,296 sh, 315 sh, 350 253 sh, 266, 294 sh, 322 sh, 367 NaOMe 273,327,400 279,318 sh, 416, (Zers.) AICI, 274,304,355,397 260 sh, 270,307,358,423 AICI,/HCI 272,302 sh, 350,395 257 sh, 269,305 sh, 357,420 NaOAc 275,314 sh, 389 276,314 sh, 391 NaOAc/H,BO, 268,302 sh, 352 268,297 sh, 320 sh, 368 MeOH NaOMe AICI, AICI,/HCI NaOAc Myr 3 C l ycosid 256,267 sh, 295 sh, 350 270,331 sh, 393 275,302 sh, 330 sh, 435 269,297 sh, 358,392 272,327 sh, 381 NaOAc/H,B03 260,295 sh, 368 MeOH NaOMe AIC1, A1C13/HC1 NaO Ac Myr 4 Glycosid 256,267 sh, 295 sh, 358 271,332 sh, 406 275,305 sh, 368 sh, 438 268,303 sh, 358,400 sh 272,328 sh, 395 NaOAc/H,BO, 262,299 sh, 375 Agly con 256,270 sh, 295 sh, 371 242 sh, 286,335,420 (schnelle Zers.) 272,302 sh, 364,456 266,299 sh, 363,426 255 sh, 287 sh, 335,422 (schnelle Zers.) 260,389 Aglycon 256,270 sh, 295 sh, 371 242 sh, 286,335,420 (schnelle Zers.) 272,302,330 sh, 364,456 266,300 sh, 362,425 255 sh, 287 sh, 335,422 (schnelle Zers.) 260,389

ChemInform Abstract: Diterpene Constituents of Euphorbia exigua L. and Multidrug Resistance Reversing Activity of the Isolated Diterpenes.

“…Ther elative configuration of 1 wase stablished mainly usingi nformation of the NOESY spectrum, and by comparison of its spectroscopic data with those of other jatrophane diterpenes [12]. Overhauser correlation of HÀC(13)/HÀC (11) indicated that HÀC (11) Compound 3 was identified as isoterracinolide B, isolated previously from Euphorbia terracina [13], but described here for the first time to be present in E. exigua as well. Overhauser correlation of HÀC(13)/HÀC (11) indicated that HÀC (11) Compound 3 was identified as isoterracinolide B, isolated previously from Euphorbia terracina [13], but described here for the first time to be present in E. exigua as well.…”

“…Euphorbia exigua L. is an annual weed with southern-temperate distribution, whose diterpene constituentsh ave not been reported previously.E arlier, Dumkow and Pohl isolated four flavonol glycosides fromt he herbs [11].…”

“…Thec ouplingc onstant of 16.1 Hz for the H-atoms HÀC(11) and HÀC(12)required an (E)-geometry of the D 11 -C¼C-bond. C) correlations of 1 membered ring.…”

Preliminary Phytochemical Investigation of Euphorbia millii

“…5 tion 1) and the filtrate was allowed to cool to room temperature. A greenish amorphous material (4.5 8.)…”