Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Ergocryptine is an ergopeptine and one of the ergoline alkaloids. It is isolated from ergot or fermentation broth and it serves as starting material for the production of bromocriptine.[1] Two isomers of ergocryptine exist, α-ergocryptine and β-ergocryptine.[2] The beta differs from the alpha form only in the position of a single methyl group, which is a consequence of the biosynthesis in which the proteinogenic amino acid leucine is replaced by isoleucine. β-Ergocryptine was first identified in 1967 by Albert Hofmann.[3] Ergot from different sources have different ratios of the two isomers.[4]
^Kren V, Cvak L (1999). Ergot: the genus Claviceps. Amsterdam: Harwood Academic Publishers. pp. 399–401. ISBN 9789057023750.
^Yates SG, Plattner RD, Garner GB (1985). "Detection of ergopeptine alkaloids in endophyte-infected, toxic Ky-31 tall fescue by mass spectrometry/mass spectrometry" (PDF). Journal of Agricultural and Food Chemistry. 33 (4): 719–722. doi:10.1021/jf00064a038.[permanent dead link]
^Schlientz W, Brunner R, Rüegger A, Berde B, Stürmer E, Hofman A (December 1967). "Beta-ergokryptine, a new alkaloid of the ergotoxine group". Experientia. 23 (12): 991–992. doi:10.1007/BF02136400. PMID 4965668. S2CID 2328419.
^Schlientz W, Brunner R, Ruegger A, Berde B, Stuermer E, Hofmann A (1968). "Ergot alkaloids. LXVII. β-Ergocryptine, a new alkaloid of the ergotoxin series". Pharmaceutica Acta Helvetiae. 43 (8): 497–509.
the production of bromocriptine. Two isomers of ergocryptine exist, α-ergocryptine and β-ergocryptine. The beta differs from the alpha form only in the...
a natural ergot alkaloid, ergocryptine (a derivative of lysergic acid), which is synthesized by bromination of ergocryptine using N-bromosuccinimide....
proportions of ergocristine, ergocornine and ergocryptine, the latter being a 2:1 mixture of alpha- and beta-ergocryptine. Ergotoxine group (valine as the amino...
formula C32H41N5O5 (molar mass: 575.710 g/mol) may refer to: Ergocryptine beta-Ergocryptine This set index page lists chemical structure articles associated...
these include ergotamine, dihydroergotamine, ergometrine, ergocristine, ergocryptine, ergocornine, methysergide, bromocriptine, cabergoline, and pergolide...
and their isomers Ergotoxine group, including ergocristine, α-ergocryptine, β-ergocryptine, ergocornine and their isomers. Ergotinine, discovered in 1875...
Lidbrink P, Ungerstedt U (April 1974). "Ergocornine and 2-Br-alpha-ergocryptine. Evidence for prolonged dopamine receptor stimulation". Medical Biology...
group, which is a consequence of the biosynthesis of the parent compound ergocryptine, in which the proteinogenic amino acid leucine is replaced by isoleucine...