Starting from a symmetrization and extension of the basic definitions results dissipativity theory, we obtain new on cyclo-dissipativity, in particular external characterization description set storage functions.

The structure of the title compound, C(19)H(28)O(2), has been redermined at 295 (2) K, with much improved precision. The structure and mol-ecular packing of the title compound was first reported by Coiro et al. [Acta Cryst. (1973). B29, 1404-1409] by means of potential-energy calculations. The cell parameters in this study differ considerably in space group C2. It is a derivative of testosteron...

Four new okaramine congeners, okaramines J, K, L and M, were isolated from okara fermented with Penicillium simplicissimum ATCC 90288, together with five biogenetically related compounds, cyclo (8a-(α,α-dimethylallyl)-L-Trp-8a-(α,α-dimethylallyl)-L-Trp), cyclo (N (8)-(α,α-dimethylallyl)-L-Trp-6a'-(α,α-dimethylallyl)-L-Trp), cyclo (L-Trp-L-Trp), cyclo (6a'-(α,α-dimethylallyl)-L-Trp-L-Trp), and c...

Skin photoaging is characterized by wrinkles, laxity, and dryness cumulatively caused sunlight exposure. One of the major contributors to skin reactive oxygen species (ROS), which trigger inflammatory response collagen degradation. Cyclic dipeptides (2,5-diketopiperazines) present in various foods microorganisms are reported have antioxidant activity. We previously developed a unique hydrolysat...

In the title compound, C(17)H(14)BrNO(5), the dihedral angle between the 3-bromo-substituted benzene ring and the 4,5-dimeth-oxy-2-nitro-phenyl ring is 15.2 (1)°. The dihedral angles between the mean plane of the propenone group and the mean planes of the 3-bromo-substituted benzene and 4,5-dimeth-oxy-2-nitro-phenyl rings are 6.9 (6) and 20.5 (5)°, respectively. Weak inter-molecular C-H⋯O inter...

The title compound, C(13)H(9)ClO(2), adopts an E configuration with respect to the C=C double bond of the propenone unit. The benzene and furyl rings are twisted slightly from each other, making a dihedral angle of 6.47 (7)°. Intra-molecular C-H⋯O and C-H⋯Cl hydrogen bonds generate an S(5)S(5)S(5) ring motif. In the crystal structure, mol-ecules are stacked along the b axis and weak inter-molec...

The title compound, C(15)H(10)Br(2)O, is a chalcone with 2-bromo-phenyl and 4-bromo-phenyl rings bonded to opposite sides of a propenone group. The dihedral angle between mean planes of the benzene rings is 71.3 (1)°. The angle between the mean plane of the prop-2-ene-1-one group and the mean planes of the 2-bromo-phenyl and 4-bromo-phenyl rings are 64.2 (9) and 71.3 (1)°, respectively. A weak ...

In the title compound, C31H30N2O, the cis-fused cyclo-hexene and cyclo-octane rings adopt boat and boat-chair conformations, respectively. The essentially planar five-membered N-heterocyclic ring [r.m.s. deviation = 0.017 (1) Å] is cis- and trans-fused, respectively, with the cyclo-hexene and cyclo-octane rings. In the crystal, mol-ecules are linked into inversion dimers through pairs of weak C...