Abstract: Compounds having the formula or solvates of the compounds can be used as intermediates in the preparation of the synthetic steroids, Etonogestrel and Desogestrel, as well as other pharmaceutically active agents.

Abstract: The invention relates to an efficient and industrially applicable process for the preparation and purification of allopregnanolone and intermediates thereof without the assistance of column chromatography.

Abstract: A process for preparing compounds of formula (I), or a salt or solvate thereof, including Brexpiprazole, which process comprises cyclization of a compound of formula (II) or (III), or a salt or solvate thereof. The invention also refers to intermediates of said process.

Abstract: A process for the preparation of obeticholic acid and derivatives thereof by: (a) hydrogenation of the double bond and reductive opening of the epoxide of a compound of formula (II) or a salt or solvate thereof to obtain a compound of formula (IIIa) and/or (IIIb), or salts or solvates thereof and (b) conversion of a compound of formula (IIIa) and/or a compound of formula (IIIb), or a salt or solvate thereof, into a compound of formula (I), or a salt or solvate thereof

Abstract: A process for the preparation of 11-methylene steroids from di-keto steroids involves selective olefination of the ketone at position 11 of the di-keto steroids. The resulting 11-methylene steroid products can be used as intermediates in the preparation of the synthetic steroids, Etonogestrel and Desogestrel, as well as other pharmaceutically active agents.

Abstract: A process for preparing compounds of formula (I), or a salt or solvate thereof, including Brexpiprazole, which process comprises cyclization of a compound of formula (II) or (III), or a salt or solvate thereof. The invention also refers to intermediates of said process.

Abstract: The invention relates to a process for obtaining Estetrol or a salt or solvate thereof, the process comprising: a) reacting a compound of formula (IV) or a salt or solvate thereof, wherein R1 is a hydroxyl protecting group selected from a silyl ether, an ether, an ester, a carbamate and a carbonate, and R2 is a hydroxyl protecting group selected from an ether, with an oxidizing agent selected from OsO4 or a source of osmium tetroxide to produce Estetrol or a compound of formula (II) or a salt or solvate thereof wherein R1 is as defined previously; and b) if a compound of formula (II) is obtained in step a), deprotecting said compound to produce Estetrol.

Abstract: 3,3-diphenylpropylamines of general formula (I), particularly Fesoterodine, as well as their enantiomers, solvates and salts, can be produced by treating a compound of formula (II) with a chiral alcohol to yield the diastereomeric esters of formula (IV) and (IV?), which can be further transformed into a compound of formula (I), or an enantiomer, solvate or salt thereof, wherein R1 is C1-C8 alkyl; and R2 and R3, independently of one another, represent H or C1-C6 alkyl, or together form a ring of 3 to 7 members with the nitrogen to which they are bound.

Abstract: The invention relates to a process for obtaining Estetrol or a salt or solvate thereof, the process comprising: a) reacting a compound of formula (IV) or a salt or solvate thereof, wherein R1 is a hydroxyl protecting group selected from a silyl ether, an ether, an ester, a carbamate and a carbonate, and R2 is a hydroxyl protecting group selected from an ether, with an oxidizing agent selected from OsO4 or a source of osmium tetroxide to produce Estetrol or a compound of formula (II) or a salt or solvate thereof wherein R1 is as defined previously; and b) if a compound of formula (II) is obtained in step a), deprotecting said compound to produce Estetrol.

Abstract: A process ethynylates 16-methylene-17-keto steroids to the corresponding 16-methylene-17?-ethynyl-17?-hydroxy steroids by treatment with silyl-protected lithium acetylides followed by further desilylation. The resulting products are useful intermediates in the preparation of several pharmaceutically active agents, such as e.g. Nestorone® or melengestrol acetate.

Abstract: Olopatadine can be obtained by means of a process comprising hydrolysis of a compound of general formula (II), wherein Y is OR1, wherein R1 is C1-C7 alkyl, C3-C7 cycloalkyl, aryl, arylalkyl, or heterocycle; or NR2R3, wherein R2 and R3, independently from each other, are C1-C7 alkyl, aryl, arylalkyl, or R2 and R3 together with the nitrogen atom to which they are bound form a heterocycle of 3 to 7 members, obtained by means of a process comprising reacting the corresponding ester or amide of 6,11-dihydro-11-oxodibenz[b,e]oxepin-2-acetic acid with a suitable Wittig reagent, in the presence of a base in a reaction medium comprising an organic solvent.

Abstract: The invention relates to a novel method for the resolution of the racemic mixture of compound (R,S)-2-amino-6-propylamino-4,5,6,7-tetrahydrobenzothiazole, or the enrichment of same with in one of its enantiomers, and to intermediate compounds which can be used to perform said method.

Abstract: A process ethynylates 16-methylene-17-keto steroids to the corresponding 16-methylene-17?-ethynyl-17?-hydroxy steroids by treatment with silyl-protected lithium acetylides followed by further desilylation. The resulting products are useful intermediates in the preparation of several pharmaceutically active agents, such as e.g. Nestorone® or melengestrol acetate.

Abstract: The invention concerns fumarate salts of solifenacin, as well as pharmaceutical compositions comprising fumarate salts of solifenacin. The invention furthermore concerns a process for preparing solifenacin and salts thereof. The fumarate salt provides improved properties over the known solifenacin salts, especially in terms of its stability. The novel process for its preparation is furthermore improved over known processes for preparing solifenacin in that it provides a higher yield and recovers a greater amount of starting material.

Abstract: The present invention relates to processes for obtaining abiraterone and derivatives thereof, such as abiraterone acetate, by means of a Suzuki coupling through a steroid borate of general formula (IV) or a C—C coupling through a steroid hydrazone of general formula (II), as well as to intermediates useful in said processes.

Abstract: The invention concerns fumarate salts of solifenacin, as well as pharmaceutical compositions comprising fumarate salts of solifenacin. The invention furthermore concerns a process for preparing solifenacin and salts thereof. The fumarate salt provides improved properties over the known solifenacin salts, especially in terms of its stability. The novel process for its preparation is furthermore improved over known processes for preparing solifenacin in that it provides a higher yield and recovers a greater amount of starting material.