Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Yoshikazu Shibano"'
Autor:
Akinori Kubo, Masanori Nagatsu, Yoshiyasu Kitahara, T. Yonezawa, Shinsuke Nakahara, Yoshikazu Shibano
Publikováno v:
Tetrahedron. 53:17029-17038
A pentacyclic aromatic alkaloid, kuanoniamine A (6) was synthesized in three steps from 6-methoxybenzothiazole-4,7-dione (8) and 2-aminoacetophenone (9). 11-Hydroxyascididemin (4) was prepared from 5,8-quinolinedione (13, 14) or 1,4-acridinedione (20
Publikováno v:
Chemical and Pharmaceutical Bulletin. 45:1697-1701
4-Phenyl-5, 8-quinolinediones (7, 8, 12, 13), 4-phenyl-5, 6-quinolinediones (9, 14), and 2-dialkylamino-4-phenyl-5, 8-quinolinediones (17, 18), were synthesized by oxidative demethylation of the corresponding 5, 8-dimethoxy- or 5, 6, 8-trimethoxy-4-p
Autor:
Hajime Onikura, Akinori Kubo, Yuzuru Mikami, Yoshikazu Shibano, Satoshi Watanabe, Yoshiyasu Kitahara
Publikováno v:
ChemInform. 28
Three aromatic alkaloids, eupomatidines 1 (1), 2 (2), and 3 (3), and two related compounds (27, 28) were synthesized from (6-methoxy-)1,4-naphthoquinone by hetero Diels-Alder reaction with (2-methoxy-)2-butenal dimethylhydrazone. © 1997 Elsevier Sci
Autor:
Yoshiyasu Kitahara, Yoshikazu Shibano, Masanori Nagatsu, Shinsuke Nakahara, Akinori Kubo, T. Yonezawa
Publikováno v:
ChemInform. 29
A pentacyclic aromatic alkaloid, kuanoniamine A (6) was synthesized in three steps from 6-methoxybenzothiazole-4,7-dione (8) and 2-aminoacetophenone (9). 11-Hydroxyascididemin (4) was prepared from 5,8-quinolinedione (13, 14) or 1,4-acridinedione (20
Publikováno v:
ChemInform. 29
4-Phenyl-5, 8-quinolinediones (7, 8, 12, 13), 4-phenyl-5, 6-quinolinediones (9, 14), and 2-dialkylamino-4-phenyl-5, 8-quinolinediones (17, 18), were synthesized by oxidative demethylation of the corresponding 5, 8-dimethoxy- or 5, 6, 8-trimethoxy-4-p