申请人:TAKATA Jiro
公开号:US20230147196A1
公开(公告)日:2023-05-11
The object of the present invention is to provide a mitochondrial dysfunction improving agent comprising a vitamin K derivative having a high deliverability to mitochondria.
A mitochondrial dysfunction improving agent, neurodegeneration improving agent, amyotrophic lateral sclerosis improving agent, Alzheimer's disease improving agent, and Parkinson's disease improving agent comprising at least one of a carboxylic acid ester of an active vitamin K represented by a general formula (1) or a salt thereof, and
(wherein, R
1
and R
2
are a hydrogen atom, respectively, or a substituent selected from glycine, N-acyl glycine, N-alkyl glycine, N,N-dialkyl glycine, N,N,N-trialkyl glycine, acyl, dicarboxylic acid hemiester, and salts thereof; and at least either of R
1
and R
2
is glycine, N-acyl glycine, N-alkyl glycine, N,N-dialkyl glycine, N,N,N-trialkyl glycine, acyl, dicarboxylic acid hemiester, and salts thereof. R
3
is a group represented by a general formula (2), or a general formula (3). n is an integer of 1 to 7)
a mitochondrial dysfunction improving agent, neurodegeneration improving agent, amyotrophic lateral sclerosis improving agent, Alzheimer's disease improving agent, and Parkinson's disease improving agent comprising a carboxylic acid ester of an active vitamin K or a salt thereof (in the general formula (1), R
1
and R
2
is a carboxylic acid residue selected from a group consisting of R
4
OOCCH
2
CH
2
CO— and R
4
OOCCH
2
CH
2
CH
2
CO—. R
3
represents the above general formula (2) or (3). R
4
is a C1-C3 alkyl group.).