Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Q. Khuong-Huu"'
Publikováno v:
Journal of Natural Products. 64:634-637
Three new limonoids, named haperforins C2 (1), F (2), and G (3), were isolated from a sample of Harrisonia perforata leaves collected in Central Vietnam. Their structures were determined by single-crystal X-ray diffraction analyses, and their NMR and
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 23
Publikováno v:
Synlett. 1991:589-591
Publikováno v:
Bulletin of the Chemical Society of Japan. 54:488-492
L-Serine was transformed in 8 steps into (4R,5S)-2,2-dimethyl-4-[(Z)-3-pentadecenyl]-1,3-dioxan-5-amine. This chiral e,ζ-unsaturated amine was subjected to intramolecular aminomercuration and then acid hydrolysis to give (−)-deoxoprosopinine and (
Autor:
Takahiko Tsuyuki, Kazuo Kurihara, Q. Khuong-Huu, Takashi Sugimoto, Hiroshi Hirota, Yukinobu Igarashi, Yutaka Saitoh, Yoshihiko Moriyama, Takeyoshi Takahashi
Publikováno v:
Bulletin of the Chemical Society of Japan. 58:3337-3345
(−)-Deoxocassine [(2R,3R,6S)-6-dodecyl-2-methyl-3-piperidinol] and its diastereomers with 2R-configuration were synthesized starting from D-alanine by a route involving the intramolecular aminomercuration of an e,ζ-unsaturated amine.
Publikováno v:
Tetrahedron Letters. 21:75-78
(−)-Deoxoprosopinine and (−)-deoxoprosophylline were synthesized starting from L -serine by a route involving the intramolecular aminomercuration of a chiral ϵ,ζ-unsaturated amine.
Publikováno v:
Collection of Czechoslovak Chemical Communications. 30:1016-1023
Autor:
Q. Khuong‐Huu, L. Diatta, C. Monneret, P. Milliet, Pierre Longevialle, J. Einhorn, J. P. Alazard, X. Lusinchi
Publikováno v:
Organic Mass Spectrometry. 5:171-186
La prtsence d'un groupement hydroxyle dans les molecules de certaines amines, amides et imines steroidiques joue un grand roe dans la fragmentation de celles-ci en spectrometrie de masse. Cette fragmentation est initiee par le transfert, parfois a lo