نتایج جستجو برای: 4h pyran

تعداد نتایج: 7801  

2009
Qun-Di Yu Ke-Xin Li Yun-Yu Liu

The pyran ring of the title compound, C(13)H(18)N(2)O(3), is almost planar (r.m.s. deviation = 0.059 Å). The crystal packing is stabilized by N-H⋯O and N-H⋯N hydrogen bonds.

2014
Mohamed Bakhouch Ghali Al Houari Mohamed El Yazidi Mohamed Saadi Lahcen El Ammari

The mol-ecule of the title compound, C20H16N2O5S, is built up by one fused five-membered and two fused six-membered rings linked to eth-oxy-carbonyl and 3-nitro-phenyl groups. The benzothieno-pyran ring system is nearly planar (r.m.s deviation = 0.0392 Å) and forms a dihedral angle of 86.90 (6)° with the aromatic ring of the nitro-benzene group. In the crystal, mol-ecules are linked by N-H⋯O hy...

2011
Adil Boughaleb Hafid Zouihri Said Gmouh Abdelali Kerbal Mohamed El yazidi

The title heterocyclic compound, C(20)H(17)NO(3)S, was synthesized by condensation of ethyl cyano-acetate with (Z)-2-benzyl-idenebenzo[b]thio-phen-3(2H)-one in the presence of a basic catalyst in ethanol. The phenyl and ester groups make dihedral angles of 77.67 (6) and 8.52 (6)°, respectively, with the benzothienopyran ring system [maximum r.m.s. deviation = 0.1177 (13) Å]. In the crystal, cen...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

2015
Y. P. Teoh

Higher fungi are a major source of bioactive secondary metabolites, and researchers have established the existence of biochemical pathways solely for the purpose of producing mycotoxins and other natural products in fungi through the study of ecological chemical interactions.1 Recently, wood-degrading fungi received great attention for its possible use as antimicrobial agent. Schizophyllum comm...

Journal: :Acta Crystallographica Section E Crystallographic Communications 2015

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