59180-29-9Relevant articles and documents
Novel 4,1-benzoxazepine derivatives with potent squalene synthase inhibitory activities
Miki, Takashi,Kori, Masakuni,Mabuchi, Hiroshi,Banno, Hiroshi,Tozawa, Ryu-ichi,Nakamura, Masahira,Itokawa, Shigekazu,Sugiyama, Yasuo,Yukimasa, Hidefumi
, p. 401 - 414 (2007/10/03)
A series of (3,5-trans)-2-oxo-5-phenyl-1,2,3,5-tetrahydro-4,1-benzoxazepine derivatives were synthesized and evaluated for squalene synthase inhibitory and cholesterol biosynthesis inhibitory activities. Through modification of substituents of the lead compounds 1a and 1b, it was found that 4,1-benzoxazepine-3-acetic acid derivatives with isobutyl and neopentyl groups at the 1-position, the chloro atom at the 7-position, and the chloro and methoxy groups at the 2'-position on the 5-phenyl ring, had potent squalene synthase inhibitory activity. Among such compounds, the 5-(2,3-dimethoxyphenyl) derivative 2t exhibited potent inhibition of cholesterol biosynthesis in HepG2 cells. As a result of optical resolution study of 2t, the absolute stereochemistry required for inibitory activity was determined to be 3R,5S. In vivo study showed that the sodium salt of (3R,5S)-7-chloro-5-(2,3-dimethoxyphenyl)-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-aceitc acid 20 effectively reduced plasma cholesterol in marmosets. Copyright
Peptidoaminobenzophenones, a novel class of ring-opened derivatives of 1,4-benzodiazepines
Hirai,Ishiba,Sugimoto,Sasakura,Fujishita,Toyoda,Tsukinoki,Joyama,Hatakeyama,Hirose
, p. 764 - 773 (2007/10/02)
A series of novel peptidoaminobenzophenones has been prepared via several routes and was evaluated for CNS activity. The structure-activity relationships in the series are discussed. In general, dipeptido-N-methylaminobenzophenones showed higher activities than the corresponding NH derivatives. Some compounds had very high activities in antipentylenetetrazole and antifighting tests in mice when orally administered. Very weak toxicity was also found in these compounds. Water solubility of the peptidoaminobenzophenones and their salts were tested. Possible in vivo conversion of peptidoaminobenzophenone by enzymatic cleavage of the terminal amino acid, followed by chemical cyclization to 1,4-benzodiazepine, is also discussed. Such novel open-ring derivatives of 1,4-benzodiazepine may serve as useful CNS agents.