[EN] OXOAZETIDINE DERIVATIVES, PROCESS FOR THE PREPARATION THEREOF AND USE THEREOF IN HUMAN MEDICINE AND IN COSMETICS<br/>[FR] DÉRIVÉS D'OXOAZÉTIDINE, PROCÉDÉ POUR LA PRÉPARATION DE CEUX-CI ET UTILISATION DE CEUX-CI DANS LA MÉDECINE HUMAINE ET DANS LES COSMÉTIQUES
申请人:GALDERMA RES & DEV
公开号:WO2010052253A1
公开(公告)日:2010-05-14
The present invention relates to novel compounds derived from oxoazetidine corresponding to general formula (I) to the compositions containing same, to the process for preparation thereof and to the use thereof in pharmaceutical or cosmetic compositions.
Process for production of optically active compounds
申请人:Yamano Toru
公开号:US20050107433A1
公开(公告)日:2005-05-19
The present invention provides a method for producing an optically active β-hydroxy ester compound represented by the general formula:
wherein
R
1
represents an optionally substituted hydrocarbon group and the like,
R
2
represents a nitrogen-containing heterocyclic group different from R
1
, which is represented by the general formula:
wherein the ring may be substituted and the like,
R
3
represents an optionally substituted hydrocarbon group and the like,
R
4
and R
5
represent, the same or different, a hydrogen atom, a halogen atom and the like,
the symbol “*” represents an optically active center, which comprises reacting in the presence of a cinchona alkaloid and the like a compound represented by the general formula:
wherein R
1
and R
2
are as defined above with a compound represented by the general formula:
wherein R
3
, R
4
and R
5
are as defined above, and X is a halogen atom.
Process for producing fused imidazole compound, reformatsky reagent in stable form, and process for producing the same
申请人:Nuwa Shigeru
公开号:US20050043544A1
公开(公告)日:2005-02-24
The present invention provides an industrially advantageous process for producing a steroid C
17,20
lyase inhibitor represented by the general formula (I):
and a Reformatsky reagent in a stable form suitable for the process.
In the present invention, a compound represented by the general formula (I) is produced by reducing a specific β-hydroxy ester compound derivative or a salt thereof obtained from a specific carbonyl compound in a Reformatsky reaction in the presence of a metal hydride complex and a metal halide, and then subjecting it to a ring-closing reaction. In the above Reformatsky reaction, it is useful to use a stable solution of a compound represented by the general formula BrZnCH
2
COOC
2
H
5
or a crystal of the compound which is represented by the formula (BrZnCH
2
COOC
2
H
5
.THF)
2
.
The present invention provides a method for producing an optically active β-hydroxy ester compound represented by the general formula:
wherein
R
1
represents an optionally substituted hydrocarbon group and the like,
R
2
represents a nitrogen-containing heterocyclic group different from R
1
, which is represented by the general formula:
wherein the ring may be substituted and the like,
R
3
represents an optionally substituted hydrocarbon group and the like,
R
4
and R
5
represent, the same or different, a hydrogen atom, a halogen atom and the like,
the symbol “*” represents an optically active center, which comprises reacting in the presence of a cinchona alkaloid and the like a compound represented by the general formula:
wherein R
1
and R
2
are as defined above with a compound represented by the general formula:
wherein R
3
, R
4
and R
5
are as defined above, and X is a halogen atom.
OXOAZETIDINE DERIVATIVES, PROCESS FOR THE PREPARATION THEREOF AND USE THEREON IN HUMAN MEDICINE AND IN COSMETICS
申请人:Bouix-Peter Claire
公开号:US20110274638A1
公开(公告)日:2011-11-10
Compounds derived from oxoazetidine corresponding to general formula (I)
compositions containing same, processes for their preparation and their use in pharmaceutical or cosmetic compositions are described.