The present invention belongs to the field of natural medicine and pharmaceutical chemistry, and specifically relates to novel 2-alkyl- or 2-aromatic-substituted tanshinone I derivatives of formula (I) or a pharmaceutically acceptable salt thereof, to a process for the preparation of these compounds, compositions containing such compounds and their use in preparing antineoplastic medicaments. When Z=R, said derivative is 2-alkyl-substituted tanshinone I; when Z=Ar, said derivative is 2-aryl-substituted tanshinone I; when Z=Het, said derivative is 2-heteroaryl- or 2-heterocyclyl-substituted tanshinone I. ##STR00001##

The present invention belongs to the field of natural medicine and pharmaceutical chemistry, and specifically relates to novel 2-alkyl- or 2-aromatic-substituted tanshinone I derivatives of formula (I) or a pharmaceutically acceptable salt thereof, to a process for the preparation of these compounds, compositions containing such compounds and their use in preparing antineoplastic medicaments. When Z=R, said derivative is 2-alkyl-substituted tanshinone I; when Z=Ar, said derivative is 2-aryl-substituted tanshinone I; when Z=Het, said derivative is 2-heteroaryl- or 2-heterocyclyl-substituted tanshinone I. ##STR00001##

The present disclosure provides a compound of Formula (I):

##STR00001##

or a pharmaceutically acceptable salt thereof as described herein. The present disclosure also provides pharmaceutical compositions comprising a compound of Formula (I), processes for preparing compounds of Formula (I), and therapeutic methods for treating inflammatory disease.

The present disclosure provides a compound of Formula (I):

##STR00001##

or a pharmaceutically acceptable salt thereof as described herein. The present disclosure also provides pharmaceutical compositions comprising a compound of Formula (I), processes for preparing compounds of Formula (I), and therapeutic methods for treating inflammatory disease.

The present invention provides a method for obtaining a specifically-shaped crystal (specifically, spherocrystal) of a compound with good reproducibility. This method for producing a specifically-shaped crystal (specifically spherocrystal) of a compound comprises: (1) a step for preparing a supersaturated solution of a compound having a degree of supersaturation equal to or higher than a critical degree of supersaturation; and (2) a step for precipitating a specifically-shaped crystal (specifically spherocrystal) of a compound from the supersaturated solution.

The present invention provides a method for obtaining a specifically-shaped crystal (specifically, spherocrystal) of a compound with good reproducibility. This method for producing a specifically-shaped crystal (specifically spherocrystal) of a compound comprises: (1) a step for preparing a supersaturated solution of a compound having a degree of supersaturation equal to or higher than a critical degree of supersaturation; and (2) a step for precipitating a specifically-shaped crystal (specifically spherocrystal) of a compound from the supersaturated solution.

The present disclosure relates to a new salt of escitalopram and its solid state forms, processes for the preparation thereof, pharmaceutical compositions thereof, and methods of use thereof.

The present disclosure relates to a new salt of escitalopram and its solid state forms, processes for the preparation thereof, pharmaceutical compositions thereof, and methods of use thereof.

The present invention pertains to a material for a photoelectric conversion element for use in an imaging element, the material containing a compound represented by formula (1) (in formula (1), R.sub.1 and R.sub.2 independently represent a substituted or unsubstituted fused heterocyclic aromatic group). The material can provide a photoelectric conversion element having excellent hole and electron leakage preventing properties, hole and electron transport properties, heat tolerance to processing temperatures, and visible light transparency.

Compounds of formula (I) are of use in the modulation of Kv3.1, Kv.3.2 and Kv3.3 channels and have utility in the treatment or prevention of related disorders. ##STR00001##