5 research outputs found
Di- and tripeptide segments of zervamicin II-2: Z-Thr(OBn)-Aib-N(Me)Ph and Z-Val-Aib-Hyp(OBn)-OMe
Full text linkThe title compounds, O-benzyl-N-(benzyloxycarbonyl)threonyl-2,N-dimethylalaninanilide, C30H35N3O5, and methyl (4R)-4-benzyloxy-N-(benzyloxycarbonyl)valyl-2-(methylalanyl)prolinate, C30H39N3O7, were obtained from the `azirine coupling' of the corresponding protected amino acids with 2,2,N-trimethyl-2H-azirin-3-amine and methyl (4R)-4-(benzyloxy)-N-(2,2-dimethyl-2H-azirin-2-yl)prolinate, respectively. The Aib unit in each molecule has the greatest turn- or helix-inducing effect on the molecular conformation. Intermolecular N—H⋯O interactions link the molecules of the tripeptide into sheets and those of the dipeptide into extended chains
Efficacité de la RPP dans la détection de substances issues des familles du MDMA, des amphétamines et des hallucinogènes type 2CB recueillies en milieu festif.
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