Abstract: This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.

Abstract: This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.

Abstract: The invention provides a method for inhibiting melanin formation composition by applying a glycine derivative, having a structure shown in the following general equation (I): wherein R1 represents a C1˜C4 alkyl group; R2 represents a hydrogen atom or a methyl group; and n represents an integer of 1˜6.

Abstract: The present invention provides a method for making 6-aminocaproic acid as an active pharmaceutical ingredient. The method comprises: performing a hydrolysis procedure to have ?-caprolactam react with acid or base to generate a first reaction mixture, performing a modification procedure to have a solubility regulating agent reacts with 6-aminocaproic acid in the first reaction mixture to form a second reaction mixture including an aminocaproic acid intermediate, performing a separation procedure to have the intermediate separated from the second reaction mixture and performing a hydrogenation procedure to have the aminocaproic acid intermediate hydrogenated to form a 6-aminocaproic acid product.

Abstract: The invention provides a method for inhibiting melanin formation composition by applying a glycine derivative, having a structure shown in the following general equation (I): wherein R1 represents a C1-C4 alkyl group; R2 represents a hydrogen atom or a methyl group; and n represents an integer of 1-6.

Abstract: The present invention provides a method for making 6-aminocaproic acid as an active pharmaceutical ingredient. The method comprises: performing a hydrolysis procedure to have ?-caprolactam react with acid or base to generate a first reaction mixture, performing a modification procedure to have a solubility regulating agent reacts with 6-aminocaproic acid in the first reaction mixture to form a second reaction mixture including an aminocaproic acid intermediate, performing a separation procedure to have the intermediate separated from the second reaction mixture and performing a hydrogenation procedure to have the aminocaproic acid intermediate hydrogenated to form a 6-aminocaproic acid product.

Abstract: The invention provides a glycine derivative, having a structure shown in the following general equation (I): wherein R1 represents a C1˜C4 alkyl group; R2 represents a hydrogen atom or a methyl group; and n represents an integer of 1˜6.

Abstract: A process for synthesis of androstane 17-? carbothioic acid is provided. The process includes mixing an androstane 17-? carboxylic acid and a coupling reagent, and adding an alkanethioic acid to form an androstane 17-? carbothioic acid, wherein the androstane 17-? carbothioic acid has the formula (I): wherein R1 represents hydrogen or haloalkyl groups, R2 represents C1-8 linear alkyl groups, C1-8 branched alkyl groups, C1-6 unsaturated acyclic groups or aromatic groups, R3 represents hydrogen or hydroxyl, R4 represents hydrogen, bromine, chlorine or fluorine and R5 represents hydrogen, bromine, chlorine or fluorine. The process is a one-pot reaction.

Abstract: A process for synthesis of androstane 17-? carbothioic acid is provided. The process includes mixing an androstane 17-? carboxylic acid and a coupling reagent, and adding an alkanethioic acid to form an androstane 17-? carbothioic acid, wherein the androstane 17-? carbothioic acid has the formula (I): wherein R1 represents hydrogen or haloalkyl groups, R2 represents C1-8 linear alkyl groups, C1-8 branched alkyl groups, C1-6 unsaturated acyclic groups or aromatic groups, R3 represents hydrogen or hydroxyl, R4 represents hydrogen, bromine, chlorine or fluorine and R5 represents hydrogen, bromine, chlorine or fluorine. The process is a one-pot reaction.

Abstract: The present invention discloses a moisture-absorbing polymer particle, which either comprises PNIPAm crosslinking copolymer or a structure having PNIPAm crosslinking copolymer as a core and polymer with sulfonic acid group as a shell. The present invention also discloses a method for producing the provided moisture-absorbing polymer particle and an application thereof; the application is referred to as a continuous dehumidifying system which comprises a first module to perform a dehumidifying process and a second module to perform a regeneration process, wherein the dehumidifying process is performed at a temperature lower than 33° C. and the regeneration process is performed at a temperature higher than 40° C.

Abstract: The present invention discloses a moisture-absorbing polymer particle, which either comprises PNIPAm crosslinking copolymer or a structure having PNIPAm crosslinking copolymer as a core and polymer with sulfonic acid group as a shell. The present invention also discloses a method for producing the provided moisture-absorbing polymer particle and an application thereof; the application is referred to as a continuous dehumidifying system which comprises a first module to perform a dehumidifying process and a second module to perform a regeneration process, wherein the dehumidifying process is performed at a temperature lower than 33° C. and the regeneration process is performed at a temperature higher than 40° C.