The present invention refers to a process for the preparation of 1-(2-halogen-ethyl)-4-piperidinecarboxylic acid ethyl esters, in particular of 1-(2-chloroethyl)-4 piperidinecarboxylic acid ethyl ester, a versatile synthesis intermediate, particularly useful as an intermediate compound in the synthesis of umeclidinium.

Disclosed are compounds of Formula 1 and pharmaceutically acceptable salts thereof, wherein L, R.sup.4, R.sup.5, R.sup.8, R.sup.10, R.sup.11, X.sup.1, X.sup.2, X.sup.3, X.sup.9, X.sup.12, and Z are defined in the specification. This disclosure also relates to materials and methods for preparing compounds of Formula 1, to pharmaceutical compositions which contain them, and to their use for treating diseases, disorders, and conditions associated with GPR6.

Disclosed are compounds of Formula 1 and pharmaceutically acceptable salts thereof, wherein L, R.sup.4, R.sup.5, R.sup.8, R.sup.10, R.sup.11, X.sup.1, X.sup.2, X.sup.3, X.sup.9, X.sup.12, and Z are defined in the specification. This disclosure also relates to materials and methods for preparing compounds of Formula 1, to pharmaceutical compositions which contain them, and to their use for treating diseases, disorders, and conditions associated with GPR6.

The present invention is directed to compounds of the formula (I) wherein all substituents are defined herein, as well as pharmaceutically acceptable compositions comprising compounds of the invention and methods of using said compositions in the treatment of various disorders.

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The invention relates to certain substituted 3-dialkylaminomethyl-piperidin-4-yl-benzamides, and compositions comprising the same, which in certain embodiments are useful for treating and/or preventing pain in a subject in need thereof.

This invention provides a composition comprising pridopidine or pharmaceutically acceptable salt thereof and at least one of compounds 1-8:

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or a pharmaceutically acceptable salt thereof; and to methods of use thereof.

This invention provides a composition comprising pridopidine or pharmaceutically acceptable salt thereof and at least one of compounds 1-8:

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or a pharmaceutically acceptable salt thereof; and to methods of use thereof.

The present invention relates to a microbicidal α-amino acrylic derivative and its preparation method and applications. Based on the principle of pesticide molecular design, the structural reform of the agricultural anti-plant virus activity is carried on lead compounds having the medical anti-coronavirus activity, and a series of α-amino acrylic derivatives are designed and synthesized, and in particular, α-amino acrylic derivatives containing piperidine rings are synthesized, and the systematic biological activity screening is carried by using known compounds as positive control compounds, which provide many effective anti-virus leading molecules for the preparation of pesticides, and has positive significance to reduce the pesticide application dosage and protect the environment and ecology.

The present invention relates to a microbicidal α-amino acrylic derivative and its preparation method and applications. Based on the principle of pesticide molecular design, the structural reform of the agricultural anti-plant virus activity is carried on lead compounds having the medical anti-coronavirus activity, and a series of α-amino acrylic derivatives are designed and synthesized, and in particular, α-amino acrylic derivatives containing piperidine rings are synthesized, and the systematic biological activity screening is carried by using known compounds as positive control compounds, which provide many effective anti-virus leading molecules for the preparation of pesticides, and has positive significance to reduce the pesticide application dosage and protect the environment and ecology.

The invention provides an N-benzyl-N-arylsulfonamide derivative, which is an N-benzyl-N-arylsulfonamide compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof. The N-benzyl-N-arylsulfonamide derivative is obtained by condensing a substituted nitrobenzene with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B), reducing the nitro group to an amino group, and subjecting the amino group to reductive amination, sulfonamidation; or by subjecting a substituted nitrobenzene to nitro reduction, reductive amination and sulfonamidation, and condensing the resultant intermediate with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B). It has been experimentally demonstrated that the N-benzyl-N-arylsulfonamide derivative of the invention can specifically bind to Kv1.3 potassium channel and inhibit or decrease its activity, and is useful in the treatment of autoimmune diseases caused by abnormal activation of the Kv1.3 potassium channel in human or animals. The invention further provides a medicament or a pharmaceutical composition comprising the N-benzyl-N-arylsulfonamide derivative.

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