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Ephedra alata

The six optically active alkaloids ephedrine, pseudoephedrine, norephedrine, norpseudoephedrine, and the N-methylated N-methylephedrine and N-methylpseudoephedrine are described in detail in Reti s review (2). Two new alkaloids of related structure have since been identified in Ephedra species, namely, (9-benzoylpseudoephedrine (271) and the oxazolidine derivative ephe-droxane (272). The 4-quinolone derivative ephedralone, recently isolated from Ephedra alata (273), may be of similar biogenetic origin as the ephedrines. Ephedra species also contain macrocyclic alkaloids of more complex structure (275). The two major Ephedra alkaloids (—)-ephedrine and (+)-pseudoephedrine are diastereomers. (—)-Ephedrine has the erythro and (+)-pseudoephedrine has the threo configuration. [Pg.106]

Ephedralone (3) is claimed as an alkaloid from the Egyptian plant Ephedra alata (M.A.M. Nawar et al., Phytochera., 1985, 24, 878). ... [Pg.218]

Black and Kelley (134) and Peronnet and Chatin (135) reported on the occurrence of ephedrine and -ephedrine in the North-African Ephedra alata Decnc. Massagetov (136) reported on two Russian species, E. equisetina and E. intermedia, as practical sources of ephedrine. [Pg.341]

Black OF, Kelly JW (1927) Pseudo ephedrine from Ephedra alata. Am J Pharm 99 748-751... [Pg.210]

Nawwar MAM, Barakat H H, Buddrus J, Linscheid M 1985 Alkaloidal, lignan and phenolic constituents of Ephedra alata. Phytochemistry 24 878-879... [Pg.510]

See other pages where Ephedra alata is mentioned: [Pg.113]    [Pg.114]    [Pg.116]    [Pg.125]    [Pg.198]    [Pg.442]    [Pg.160]    [Pg.113]    [Pg.114]    [Pg.116]    [Pg.125]    [Pg.198]    [Pg.442]    [Pg.160]    [Pg.1221]   
See also in sourсe #XX -- [ Pg.218 ]

See also in sourсe #XX -- [ Pg.3 , Pg.341 ]

See also in sourсe #XX -- [ Pg.341 ]

See also in sourсe #XX -- [ Pg.442 ]



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ALATA

Ephedra

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