Mass Spectra of Bis-Amide Pyrrolidine Alkaloids.
نویسندگان
چکیده
منابع مشابه
Synthetic Studies of Alkaloids Containing Pyrrolidine and Piperidine Structural Motifs
Our molecules of interest were mainly 2-substituted pyrrolidine and piperidine alkaloids containing 1, 3-aminoketone and 1, 3-aminoalcohol units which are of special synthetic interest (Figure 1). Hygrine and norhygrine belong to the class of tropane alkaloids. The rest of the alkaloids are isolated from 60 species of the genus Sedum and are usually referred as Sedum alkaloids which are of imme...
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The alkaloid composition of Convolvulus lanatus was investigated by GLC and GLC-MS. Altogether, thirteen tropane and pyrrolidine alkaloids were identified on the basis of mass spectral data and/or Kovats retention indices. Twelve of them have been recorded for the first time in this plant and some of these alkaloids were identified for the first time in the genus Convolvulus. Cuscohygrine is th...
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Since the diamine putrescine can be metabolized into the pyrrolidine ring of tobacco alkaloids as well as into the higher polyamines, we have investigated the quantitative relationship between putrescine and these metabolites in tobacco callus cultured in vitro. We measured levels of free and conjugated putrescine and spermidine, and pyrrolidine alkaloids, as well as activities of the putresci...
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The unpublished in the literature FAB mass spectral fragmentation of seven oxosparteines (i.e., 2-oxosparteine, 15-oxosparteine, 17-oxosparteine, 2,17-dioxosparteine, 2,13-dioxosparteine, 2-oxo-13-hydroxysparteine, and 2-oxo-17-hydroxysparteine) is investigated. Fragmentation pathways, elucidation of which was assisted by FAB/collision-induced dissociation (CID) mass spectra measurements, are d...
متن کاملN,N-Bis(cyanomethyl)nitrous amide
In the title compound, C(4)H(4)N(4)O, both H atoms bonded to one methyl-ene C atom are involved in C-H⋯N hydrogen-bonding inter-actions; one of the inter-actions results in dimers of the title mol-ecule lying about inversion centers in R(2) (2)(12) motifs and the other forms chains of mol-ecules lying along the c axis.
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ژورنال
عنوان ژورنال: Journal of the Mass Spectrometry Society of Japan
سال: 1994
ISSN: 1340-8097,1880-4225
DOI: 10.5702/massspec.42.325