4, 5-Dimethoxycanthin-6-one and 2, 6-Dimethoxy-p-benzoquinone from Picrasma ailanthoides Planchon
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چکیده
منابع مشابه
4-(4-Chlorophenyl)-6-hydroxy-5-(2-thienylcarbonyl)-6-(trifluoromethyl)-3,4,5,6-tetrahydropyrimidin-2(1H)-one monohydrate
The asymmetric unit of the title compound, C(16)H(12)ClF(3)N(2)O(3)S·H(2)O, contains two crystallographically independent organic mol-ecules and two water mol-ecules. The organic species are linked by an inter-molecular O-H⋯O hydrogen bond, while the water mol-ecules are connected to them through inter-molecular O-H⋯N hydrogen bonds. The thio-phene and phenyl rings are oriented at dihedral angl...
متن کامل6-Cyclohexylmethyl-2-cyclohexylsulfanyl-5-isopropylpyrimidin-4(3H)-one
The title compound, C(20)H(32)N(2)OS, was obtained during the course of our investigation on 2-alkylsulfanyl-6-benzyl-3,4-dihydropyrimidin-4(3H)-ones (S-DABOs) showing favourable anti-HIV-1 activity. Both cyclo-hexane rings adopt chair conformations. The angle at the methyl-ene C atom linking the pyrimidine and cyclo-hexane ring is 113.7 (3)°, which is in the range considered optimal for maximu...
متن کامل6-Ethyl-5-fluoro-2-methoxypyrimidin-4(3H)-one
In the title compound, C(7)H(9)FN(2)O(2), the meth-oxy and ethyl groups form dihedral angles of 1.4 (2) and 73.5 (3)°, respectively, with the mean plane of the pyrimidine ring. In the crystal structure, two mol-ecules are linked by a pair of N-H⋯O hydrogen bonds, forming a centrosymmetric dimer.
متن کامل6-Hydroxy-4-(pyridin-3-yl)-5-(2-thienylcarbonyl)-6-trifluoromethyl-3,4,5,6-tetrahydropyrimidin-2(1H)-one
In the title compound, C(15)H(12)F(3)N(3)O(3)S, the pyrimidine ring adopts a half-chair conformation with the mean plane formed by the ring atoms excluding the C atom bonded to thio-phene-2-carbonyl group lying nearly perpendicular to the pyridine and thio-phene rings, making dihedral angles of 84.91 (4) and 87.40 (5)°, respectively. The dihedral angle between the pyridine and thio-phene rings ...
متن کامل4-(3-Fluorophenyl)-6-hydroxy-5-(thiophen-2-ylcarbonyl)-6-trifluoromethyl-1,3-diazinan-2-one
In the title compound, C(16)H(12)F(4)N(2)O(3)S, the pyrimidine ring adopts a half-chair conformation; the mean plane formed by the ring atoms excluding the C atom bonded to the thio-phen-2-ylcarbonyl group has an r.m.s. deviation of 0.059 Å. The dihedral angle between the benzene and thio-phene rings is 62.26 (7)°. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯O hydrogen b...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1961
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.34.888b