Patent classifications
C07C49/443
Process for the preparation of 17β-hydroxy-des-A-androst-9,10-en-5-one
The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.
Process for the preparation of 17β-hydroxy-des-A-androst-9,10-en-5-one
The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.
PROCESS FOR THE PREPARATION OF 17BETA-HYDROXY-DES-A-ANDROST-9,10-EN-5-ONE
The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.
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PROCESS FOR THE PREPARATION OF 17BETA-HYDROXY-DES-A-ANDROST-9,10-EN-5-ONE
The present invention relates to a new process for the synthesis of 17-hydroxy-des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.
##STR00001##
Process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione
This invention relates to methods for the synthesis of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione which are useful as intermediates in the manufacture of pharmaceutically active ingredients.
Process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione
This invention relates to methods for the synthesis of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione which are useful as intermediates in the manufacture of pharmaceutically active ingredients.
NOVEL OCTAHYDROINDENYL PROPANAL COMPOUNDS
The present invention pertains to novel octahydro-indene compounds and their unexpected advantageous use thereof in enhancing, improving or modifying the fragrance of perfumes, colognes, toilet waters, fabric care products, personal products, and the like.
NOVEL OCTAHYDROINDENYL PROPANAL COMPOUNDS
The present invention pertains to novel octahydro-indene compounds and their unexpected advantageous use thereof in enhancing, improving or modifying the fragrance of perfumes, colognes, toilet waters, fabric care products, personal products, and the like.
Novel process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione
This invention relates to methods for the synthesis of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione which are useful as intermediates in the manufacture of pharmaceutically active ingredients.
Novel process for the preparation of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione
This invention relates to methods for the synthesis of spiro[2.5]octane-5,7-dione and spiro[3.5]nonane-6,8-dione which are useful as intermediates in the manufacture of pharmaceutically active ingredients.