The title adamantane derivative, C(12)H(21)NO·0.5H(2)O, was synthesized as part of an investigation into the biological activities of cage amino-alcohol compounds as potential anti-tuberculosis agents. The structure displays inter-molecular O-H⋯N, N-H⋯O, O-H⋯O hydrogen bonding and a layered packing structure with distinct hydro-philic and hydro-phobic regions. The water molecule lies on a twofo...

The crystal structure of the title compound, C(8)H(12)N(+)·Cl(-)·H(2)O, consists of hydro-phobic layers of dimethyl-anilinium cations parallel to the bc plane alternated by hydro-philic layers of chloride anions and water mol-ecules. The layers are linked by N-H⋯O and N-H⋯Cl hydrogen bonds involving the ammonium groups of the cations. The cohesion of the ionic structure is further stabilized by...

This paper dealt with the controlled release of two kinds of drugs, 5-fluorouracil (5-FU) and hydrocortisonum (Hydro.) and loaded poly(ethylene-vinylalcohol) (EVAL), which composed 5-FU/EVAL and Hydro./EVAL matrix systems. The results were analyzed using the pseudo-steady-diffusion models coupled with the fundamental concepts of percolation theory. The percolation thresholds for the two systems...

The title compound, C(16)H(16)O(8), is a potent nonspecific phyto-toxin. The crystal structure is the average of two tauto-mers, 5,6,7,9,10-penta-hydr-oxy-2-meth-oxy-7-methyl-1,4,5,6,7,8-hexa-hydro-anthracene-1,4-dione and 1,4,5,6,7-pentahydr-oxy-2-meth--oxy-7-methyl-5,6,7,8,9,10-hexa-hydro-anthracene-9,10-di-one. The cyclo-hexene rings in both tautomers display a half-chair conformation. An ex...

The title compound, C(24)H(39)NO(2) (systematic name: 4-{[1,4a-dimethyl-7-(propan-2-yl)-1,2,3,4,4a,5,6,7,8,9,10,10a-dodeca-hydro-phenanthren-1-yl]carbon-yl}morpholine), has been synthesized from Δ(8)-dihydro-abietic acid. Two cyclo-hexene rings adopt half-chair conformations, whereas the cyclo-hexane and morpholine rings are each in the chair conformation. Two methyl groups are in an axial posi...

abstract introduction the main function of the fibrinolytic system is to dissolve fibrin clots in circulation. this system is composed of inactive precursor plasminogen which can be converted into plasmin by the proteolytic enzymes like tissue-type plasminogen activator (tpa). fibrinolytic properties can be found in a variety of medicine plants and they could effectively prevent cardiovascular ...

the physiological process of germination depends on several environmental factors such as temperature, water potential, light, nutrients and smoke. water and temperature are determinant factors for seed germination. both factors can, separately or jointly, affect the germination percentage and germination rate. the effect of temperature on germination and water potential on germination canoften...

In the title mol-ecule, C(18)H(23)NO(3), the hydro-per-oxy-butyl substituent is nearly fully extended, with the four torsion angles in the range 170.23 (10)-178.71 (9)°. The O-O distance in the hydro-peroxide group is 1.4690 (13) Å. This group acts as an inter-molecular hydrogen-bond donor to a quinoline N atom. This results in dimeric units about the respective inversion centers, with graph-se...

The asymmetric unit of the title compound, C(6)H(7)N(2)O(2) (+)·Cl(-), contains two independent ion pairs. A monoclinic form of the title compound with only one ion pair in the asymmetric unit has been reported previously [Ploug-Sørensen & Andersen (1986). Acta Cryst. C42, 1813-1815]. In the crystal of the title compound, the components are linked into layers parallel to (001) by inter-molecula...