The Effects of Prodrug Size and a Carbonyl Linker on
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‐Type Amino Acid Transporter 1‐Targeted Cellular and Brain Uptake
作者:Brooklynn Venteicher、Kasey Merklin、Huy X. Ngo、Huan‐Chieh Chien、Keino Hutchinson、Jerome Campbell、Hannah Way、Joseph Griffith、Cesar Alvarado、Surabhi Chandra、Evan Hill、Avner Schlessinger、Allen A. Thomas
DOI:10.1002/cmdc.202000824
日期:2021.3.3
The l‐typeaminoacidtransporter 1 (LAT1, SLC7A5) imports dietary aminoacids and aminoacid drugs (e. g., l‐DOPA) into the brain, and plays a role in cancer metabolism. Though there have been numerous reports of LAT1‐targeted aminoacid‐drug conjugates (prodrugs), identifying the structural determinants to enhance substrate activity has been challenging. In this work, we investigated the position
Urea derivative, process for producing the same, and use
申请人:Kubo Keiji
公开号:US20070093501A1
公开(公告)日:2007-04-26
The present invention provides a urea derivative or a salt thereof, which is useful as a therapeutic agent for thrombosis. The derivative is represented by Formula (I):
wherein Cy is an aromatic hydrocarbon group which may be substituted or an aromatic heterocyclic group which may be substituted; R
1
is a hydrogen atom or a hydrocarbon group which may be substituted; V is —C(O)—, —S(O)—, or —S(O)
2
—; W is —N(R
2
)—, —O—, or a bond (wherein R
2
is a hydrogen atom or a hydrocarbon group which may be substituted); X is alkylene which may be substituted; Y is —C(O)—, —S(O)—, or —S(O)
2
—; Z is a bond, a chain hydrocarbon group which may be substituted, or —N═; ring A is a non-aromatic nitrogen-containing heterocyclic ring which may be substituted; ring B is a nitrogen-containing heterocyclic ring which may be substituted; and
[Chemical formula 2]
,
are each independently a single bond or a double bond; provided that R
1
may be bonded to R
2
to form a non-aromatic nitrogen-containing heterocyclic ring and that R
2
may be bonded to a substituent of X to form a non-aromatic nitrogen-containing heterocyclic ring which may be substituted.
Disclosed are (1) a cyclic hexapeptide represented by formula [I] or a salt thereof:
wherein X and Y each represent a-amino acid residues, A represents a D-acidic-a-amino acid residue, B represents a neutral-a-amino acid residue, C represents an L-a-amino acid residue and D represents a D-a-amino acid residue having an aromatic ring group; and (2) a pharmaceutical composition comprising the peptide represented by formula [I] or a pharmaceutically acceptable salt thereof as an active ingredient.
Methods and compositions for the prophylactic and/or therapeutic treatment of organ hypofunction
申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0626174A2
公开(公告)日:1994-11-30
Compounds having antagonistic activity on endothelin receptors can be effectively used for prophylaxis and/or treatment of hypofunction of organs which occurs in their surgery or transplant.
对内皮素受体具有拮抗活性的化合物可有效用于预防和/或治疗器官移植手术中出现的器官功能减退。
Sustained-release preparation of anti-endothelin substance
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0647449A1
公开(公告)日:1995-04-12
A sustained-release preparation containing an anti-endothelin substance and a biodegradable polymer.
The sustained-release preparation of the present invention sustainedly releases an anti-endothelin substance, serving well in the treatment of endothelin-associated diseases.