000 01803nam a2200325Ia 4500
003 MX-MdCICY
005 20250625140701.0
040 _cCICY
090 _aB-11975
245 1 0 _aTransformation of Plant Pyrrolizidine Alkaloids into Novel Insect Alkaloids by Arctiid Moths (Lepidoptera)
490 0 _vBioChemical Systematics and Ecology, 18(7-8), p.549-554, 1990
520 3 _aTwo new pyrrolizidine alkaloids (PAs)were isolated from adults of Creatonotos transiens, the larvae of which had ingested retronecine or ester alkaloids, The structures were elucidated by GC-MS and 1H and 1~C NMR spectroscopy as 09-(2 - hydroxy-3-methylpentanoyl)-retronecine (creatonotine)and its isomer OT-(2-hydroxy-3-methylpentanoyl)-retronecine (isocreatonotine). The 2-hydroxy-3-methylpentanoic acid obtained by hydrolysis of the creatonotines is the 2S,3S-stereoisomer. The creatonotines as well as accompanying trace amounts of callimorphine were shown to be synthesized by both sexes from dietary retronecine by esterification. If Creatonotos larvae had been fed with Gynura scandens as PA source, the insect PAs accounted for about 75
650 1 4 _aCREATONOTOS TRANSIENS
650 1 4 _aARCTIIDAE
650 1 4 _aLEPIDOPTERA
650 1 4 _aPYRROLIZIDINE ALKALOIDS (INSECT SPECIFIC)
650 1 4 _aCREATONOTINE
650 1 4 _aISOCREATONOTINE
650 1 4 _aCALLIMORPHINE
650 1 4 _aSTRUCTURE ELUCIDATION
650 1 4 _aBIOSYNTHESIS
700 1 2 _aHartmann, T.
700 1 2 _aBiller, A.
700 1 2 _aWltte, L.
700 1 2 _aErnst, L.
700 1 2 _aBoppri, M.
856 4 0 _uhttps://drive.google.com/file/d/1BjmapJ-iB0PWoEuLnsVJ6nF_pHUhqcCC/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c46188
_d46188