نتایج جستجو برای: 4 diazepine

تعداد نتایج: 1303728  

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

2013
Rajni M. Bhardwaj Alastair J. Florence

In the title solvate, C17H20N4S·2C3H8O, pairs of olanzapine mol-ecules related by a centre of inversion stack along the a axis, forming columns, which are packed parallel to each other along the b axis, forming a sheet arrangement. The columns within these sheets are hydrogen bonded to each other through the propan-2-ol solvent mol-ecules. The diazepine ring of the olanzapine exists in a pucker...

2007
Hussein Ibrahim El-Subbagh

The synthesis and hypnotic evaluation of a new generation of thiazolo[3,2-a][1,3]diazepine analogs are described. Those compounds exhibit potent in vivo activities as ultra-short acting hypnotics. Background of the Invention Surgical procedures require the administration of several intravenous drugs to ensure hypnosis, analgesia, relaxation and control of visceral reflex responses. The use of i...

Journal: :Acta chimica Slovenica 2015
Mohammad Ali Ghasemzadeh Javad Safaei-Ghomi

Highly efficient CuI nanoparticles catalyzed one-pot synthesis of some benzo[b][1,5]diazepine derivatives via multi-component condensation of aromatic diamines, Meldrum's acid and isocyanides. The present approach creates a variety of benzo[b][1,5]diazepines as pharmaceutical and biologically active heterocyclic compounds in excellent yields and short reaction times. The salient features of the...

2009
Hoong-Kun Fun Chin Sing Yeap Anita Hazra Subrata Jana Shyamaprosad Goswami

The asymmetric unit of the title compound, C(20)H(17)N(3), contains two crystallographically independent mol-ecules (A and B). In mol-ecule A, the two benzene rings form dihedral angles of 74.12 (7) and 7.83 (7)° with the pyridine ring, while in mol-ecule B these angles are 77.48 (7) and 21.50 (7)°. The seven-membered heterocyclic ring adopts a boat conformation in both mol-ecules. In the cryst...

Magnetic nanoparticle-supported sulfanilic acid (MNPs-PhSO3H) has been used as an efficient catalyst for the preparation of 1,4-diazepines containing tetrazole ring. The catalyst has been characterized by FT-IR (Fourier-transform infrared spectroscopy), SEM (scanning electron microscope), XRD (X-ray diffraction) and VSM (vibrating-sample magnetometer). The present synthetic protocol provides se...

Journal: :Dalton transactions 2011
Lorenzo Tei Giuseppe Gugliotta Marianna Fekete Ferenc K Kálmán Mauro Botta

Three novel chelators based on the 6-amino-6-methylperhydro-1,4-diazepine scaffold and possessing three pendant N-acetic or N-α-methylacetic acid have been synthesised. The ligands contain six donor atoms for complexation of Mn(II) ions and thus potentially leave an additional site for coordination of a water molecule. The protonation constants of the ligands and the stability constants of thei...

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