Abstract: A sweat sensor, includes a sweat-guiding electrode layer including an insulating layer, a conductive electrode provided in the insulating layer, and a first through hole, wherein the first through hole goes through the insulating layer and the conductive electrode; an adhesive layer provided on the insulating layer, wherein the adhesive layer is provided with a second through hole communicated with the first through hole; and a water-absorbing diffusion layer provided on the adhesive layer, wherein the water-absorbing diffusion layer covers the second through hole. A sweat sensing system is further provided with a plurality of sweat sensors. The sweat sensor simultaneously and continuously detects a sweat volume and an electrolyte concentration in real time, and prevents the mixture of old and new sweat from interfering with the detection of the electrolyte concentration.

Abstract: Provided is a method for resolution of formula 4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxy-methyl benzonitrile as an enantiomer thereof, comprising the following steps: a salt of (S)-4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxymethyl benzonitrile with a resolving agent D-(+)di-p-toluoyl tartaric acid was crystallized in a resolving solvent; the method is characterized in that the resolving solvent is an ether solvent. Also provided is a new crystal form of the resolved intermediate.

Abstract: Provided is a method for resolution of formula 4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxy-methyl benzonitrile as an enantiomer thereof, comprising the following steps: a salt of (S)-4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxymethyl benzonitrile with a resolving agent D-(+)di-p-toluoyl tartaric acid was crystallized in a resolving solvent; the method is characterized in that the resolving solvent is an ether solvent. Also provided is a new crystal form of the resolved intermediate.

Abstract: Provided is a method for resolution of formula 4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxy-methyl benzonitrile as an enantiomer thereof, comprising the following steps: a salt of (S)-4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxymethyl benzonitrile with a resolving agent D-(+)di-p-toluoyl tartaric acid was crystallized in a resolving solvent; the method is characterized in that the resolving solvent is an ether solvent. Also provided is a new crystal form of the resolved intermediate.

Abstract: Provided is a method for resolution of formula 4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxy-methyl benzonitrile as an enantiomer thereof, comprising the following steps: a salt of (S)-4-[4-dimethylamino-1-(4-fluorophenyl)-1-hydroxylbutyl]-3-hydroxymethyl benzonitrile with a resolving agent D-(+)di-p-toluoyl tartaric acid was crystallized in a resolving solvent; the method is characterized in that the resolving solvent is an ether solvent. Also provided is a new crystal form of the resolved intermediate.

Abstract: The present invention relates to a method for synthesizing prasugrel, comprising the following steps: converting o-fluorobenzyl cyclopropyl ketone into ?-cyclopropylcarbonyl-2-fluorobenzyl halide (compound 2) using dibromohydantoinhydantoin as halogenation reagent and acetic acid as solvent, then 2-oxo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine p-toluenesulfonate (compound 4) is obtained with high yield by a concerted catalysis using a phase transfer catalyst and an inorganic salt, then is condensed and acylated to obtain prasugrel as a gum. The present invention also provides a method for purifying prasugrel comprising crystallizing using alcohols as a crystallization solvent to obtain prasugrel crystals with a high purity.

Abstract: The present invention relates to a method for synthesizing prasugrel, comprising, the following steps: converting o-fluorobenzyl cyclopropyl ketone into ?-cyclopropylcarbonyl-2-fluorobenzyl halide (compound 2) using dibromohydantoinhydantoin as halogenation reagent and acetic acid as solvent, then 2-oxo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine p-toluenesulfonate (compound 4) is obtained with high yield by a concerted catalysis using a phase transfer catalyst and an inorganic salt, then is condensed and acylated to obtain prasugrel as a gum. The present invention also provides a method for purifying prasugrel comprising crystallizing using alcohols as a crystallization solvent to obtain prasugrel crystals with a high purity.