Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hiromi Ohtomo"'
Publikováno v:
Journal of Heterocyclic Chemistry. 48:715-719
N-[2-([1,2,4]Oxadiazol-5-yl)cyclohepten-1-yl]formamide oximes were synthesized by fusion of (6,7,8,9-tetrahydro-5H-cyclohepta[1,2-d]pyrimidin-4-yl)amidines with hydroxylamine hydrochloride through a subsequent rearrangement reaction. Effects of the p
Publikováno v:
Synthetic Communications. 41:812-819
The reaction of 3-(2-bromoethyl)quinazolin-4(3H)-one with ethyl- and n-propylamine gave abnormal fused 3-alkyl-4-alkyliminoquinazolines via a Dimroth-type rearrangement, as well as normal substituted 3-(2-alkylaminoethyl) derivatives in methanol. The
Publikováno v:
Chemical and Pharmaceutical Bulletin. 57:755-758
Reaction of some fused tricyclic 3-(2-bromoethyl)pyrimidin-4(3H)-ones with primary alkyl amines gave abnormal fused 3-alkyl-4-alkyliminopyrimidines via a Dimroth-type rearrangement, as well as normal substituted 3-(2-alkylaminoethyl) derivatives in m
Publikováno v:
Tetrahedron. 63:12541-12546
Reaction of fused 3-(2-bromoethyl)pyrimidin-4(3H)-ones with primary alkylamines gave abnormal fused 3-alkyl-4-alkyliminopyrimidines via a new rearrangement, as well as normal substituted 3-(2-alkylaminoethyl) derivatives. Antidepressive evaluation of
Publikováno v:
Journal of Heterocyclic Chemistry. 33:1663-1669
Synthesis of 11-substituted 1,2,4,5-tetrahydrobenzo[h]imidazo[1,2-c]quinazolines corresponding to 12-substituted 11,13,15-triazasteroid is described. Evaluation on inhibitory activity against collagen-induced platelet aggregation of these compounds a
Publikováno v:
ChemInform. 42
Publikováno v:
ChemInform. 42
The reaction of quinazolinone or tetrahydroquinazolinone derivatives of type (II) with alkylamines gives 3-alkyl-4-alkylimino compounds of type (IV) via a Dimroth-type rearrangement or normal substitution products of type (V).
Publikováno v:
Journal of Heterocyclic Chemistry. 30:989-992
Synthesis of benzo[3,4]cyclohepta[1,2-e]pyrimido[1,2-c]pyrimidines, corresponding to the B,D-dihomo-11,13,15-triazasteroidal skeleton as a novel ring system is described. Their effects on reserpine-induced hypothermia in mice and inhibitory activity
Autor:
Hiromi Ohtomo, Yoshiji Hantani, Minoru Yamada, Tomohisa Nagamatsu, Takashi Hirota, Taiji Nakayama, Kenji Sasaki
Publikováno v:
Journal of Heterocyclic Chemistry. 30:193-202
As a series of polyheterocyclic compounds for exploitation as anti-platelet agents, tricyclic heterocyclic compounds, 4-substituted 6,7-dihydro-5H-pyrimido[5,4-d][1]benzazepines 3–6, 9, 12–14, and 16–26, having nitrogen, oxygen, or sulfur conta
Autor:
Kenji Sasaki, Tomohisa Nagamatsu, Yoshiji Hantani, Hiromi Ohtomo, Taiji Nakayama, Takashi Hirota
Publikováno v:
Journal of Heterocyclic Chemistry. 30:233-240
A study of the cyclization method by heating of N-(6,7-dihydro-5H-pyrimido[5,4-d][1]benzazepin-4-yl)amino acids 3a-h, 6, and 9a,b with excess acetic anhydride for the preparation of 2-substituted 1-acetoxy-6-acetyl-5,6-dihydro-4H-imidazo[1,2′:1,6]p