Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Hubert Dyker"'
Publikováno v:
Invertebrate Reproduction & Development. 39:239-247
Summary Two types of allato-regulating peptides, Manse-AT and Manse-AS, were injected twice a day into larvae and adults of S. frugiperda to test their effects on life table parameters in vivo. Injections of Manse-AT (1 nmol per injection) into penul
Publikováno v:
The Journal of Organic Chemistry. 66:3760-3766
A general route to azadepsipeptides, a new class of pseudopeptides, has been established. The methodology was applied to the synthesis of a bis-aza analogue of the antiparasitic cyclooctadepsipeptide PF1022A. Comparison of the X-ray crystal structure
Publikováno v:
Journal of Insect Physiology. 46:1423-1431
The diuretic activity of the helicokinins I (YFSPWG-amide), II (VRFSPWG-amide) and III (KVKFSAWG-amide) was tested on Heliothis virescens larvae. All three kinins increased fluid secretion in isolated Malpighian tubules in a dose-dependent manner. In
Publikováno v:
Insect Biochemistry and Molecular Biology. 30:719-727
A peptide that strongly stimulates juvenile hormone (JH) biosynthesis in vitro by the corpora allata (CA) was purified from methanolic brain extracts of adult Spodoptera frugiperda. Using HPLC separation followed by Edman degradation and mass spectro
Publikováno v:
Pesticide Science. 55:457-461
A mono-proline analogue of the potent anthelmintic cyclooctadepsipeptide PF1022A has been synthesized. NMR studies in combination with molecular dynamics simulations demonstrate that the confirmation of this analogue is both rigidified and distorted
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 8:1035-1040
The first structure-activity relationships of the anthelmintic cyclooctadepsipeptide PF1022A have been established via a systematic exchange of the leucine residues by a series of related N-alkylated amino acids. The data presented strongly suggest t
Publikováno v:
Chemistry - A European Journal. 4:311-320
Publikováno v:
Angewandte Chemie. 105:420-423
Autor:
Dieter Enders, Hubert Dyker
Publikováno v:
ChemInform. 22
The enantiomers of the two artificial fragrances 3-(4-tert-butylphenyl)-2-methylpropanal (lilial) and 2-methylundecanal are synthesized with high enantiomeric purity using the SAMP/RAMP hydrazone method. The enantiomeric excesses are determined by HP
Publikováno v:
ChemInform. 23