A novel method was developed for the synthesis of tetrazoles from amides utilizing diphenyl phosphorazidate or bis(p-nitrophenyl) phosphorazidate as both the activator of amide–oxygen for elimination and azide source. Various amides were converted into the corresponding tetrazoles in good yields. This synthetic method allows to prepare 1,5-disubstituted and 5-substituted 1H-tetrazoles from various
On treatment with an excess of sodium azide in the presence of titanium(IV) chloride in boiling acetonitrile, both aliphatic and aromatic ketones are smoothly converted to 1,5-disubstituted 1H-tetrazoles in high yields.
[Ru] = (η5-C5H5)(dppe)Ru, dppe = Ph2PCH2CH2PPh2) with trimethylsilyl azide afforded the cationic nitrile complex [Ru]NCCH2Ph}[N3] (2) and the further cycloaddition of 2 with trimethylsilyl azide at 60 °C afforded the N(2)-bound tetrazolato complex [Ru]N4CCH2Ph (3). The regiospecific alkylation of 3 gave a series of cationic N(2)-bound N(4)-alkylated-5-benzyl tetrazolato complexes [Ru]N4(CH2R)CCH2Ph}[Br]
的[Ru] -C的治疗器CPh(1,[茹] =(η 5 -C 5 H ^ 5)(DPPE)钌,DPPE =苯基2 PCH 2 CH 2 PPH 2)与三甲基甲硅烷叠氮化物,得到阳离子型的腈络合物[ Ru] NCCH 2 Ph} [N 3 ](2)和2与三甲基甲硅烷基叠氮化物在60°C进一步环加成,得到N(2)-键合的四唑酸酯络合物[Ru] N 4 CCH 2 Ph(3)。3的区域特异性烷基化得到一系列阳离子N(2)结合的N(4)-烷基化的-5-苄基四唑并合物4(CH 2 R)CCH 2 Ph} [Br]( 4a,R = C 6 F 5 ; 4b,R = Ph; 4c,R = 4-CN-C 6 H 4 ; 4d,R = 2,6- F 2 -C 6 H 3; 4e,R = 6-CH 2 Br-C 5 NH 3),随后4a-4e的Ru-N键断裂,得到N(1)-烷基化-5-苄基四唑N 4(CH 2
REMEDIES FOR STRESS DISEASES COMPRISING MITOCHONDRIAL BENZODIAZEPINE RECEPTOR ANTAGONISTS
申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP1438973A1
公开(公告)日:2004-07-21
A pharmaceutical composition for the prophylaxis and/or treatment of diseases induced, exacerbated or reignited by stressors comprising the compound of formula (I)
wherein all symbols have the same meanings as described in the specification, etc. as an active ingredient.
Leistungsgesteigerte und irritationsverminderte Mittel zum Aufhellen und/oder Färben von Keratinfasern, insbesondere menschlichen Haaren, enthalten -bezogen auf ihr Gewicht - 0,001 bis 15 Gew.-% mindestens eines Tetrazols. Vorzugsweise sind darüber hinaus 0,001 bis 5 Gew.-% eines oder mehrerer Oxidationsfarbstoffvorprodukte und/oder direktziehender Farbstoffe enthalten.