Long-acting GLP-1 compound
A novel GLP-1 derivative, compared with GLP-1 derivatives such as liraglutide and semaglutide which are on the market, has comparable or better effect, potency or efficacy, longer or comparable duration of action in vivo or half-life in vivo, has better or comparable GLP-1 receptor binding affinity and has better or comparable DPP-IV stability.
1 . A compound of formula (B):
or a pharmaceutically acceptable salt, amide or ester thereof,
wherein
G1 is a [Gly8, Arg34]GLP-1-(7-37) peptide of SEQ ID NO: 2;
[Acy-(L1) r -(L2) q ] is a substituent linked to the ε amino group of the Lys residue at position 26 of the [Gly8, Arg34]GLP-1-(7-37) peptide;
r is 1;
q is 1 or 2;
Acy is a fatty diacid comprising 20, 21 or 22 carbon atoms, wherein formally, a hydroxyl group has been removed from one of the carboxyl groups in the fatty diacid;
L1 is the amino acid residue of γGlu;
L2 is-HN-(CH 2 ) 2 -O-(CH 2 ) 2 -O-CH 2 -CO-;
Acy, L1 and L2 are linked by amide bonds; and
the C-terminus of L2 is linked to the ε amino group of the Lys residue at position 26 of the [Gly8, Arg34]GLP-1-(7-37) peptide.
2 . The compound according to claim 1 , wherein, Acy is HOOC-(CH 2 ) 18 -CO-, HOOC-(CH 2 ) 19 -CO-, or HOOC-(CH 2 ) 20 -CO-.
3 . The compound according to claim 2 , wherein, Acy is HOOC-(CH 2 ) 18 -CO-, or HOOC-(CH 2 ) 20 -CO-.
4 . The compound according to claim 3 , wherein the compound is selected from the group consisting of:
N-ε 26 -[2-(2-[2-(2-[2-(2-[4-(19-carboxynonadecanoylamino)-4 (S)-carboxybutanoylamino]ethoxy)ethoxy]acetylamino)ethoxy]ethoxy) acetyl][Gly8, Arg34]GLP-1-(7-37) peptide;
N-ε 26 -[2-(2-[2-(4-[19-carboxynonadecanoylamino]-4 (S)-carboxybutanoylamino)ethoxy]ethoxy) acetyl][Gly8, Arg34]GLP-1-(7-37) peptide; and
N-ε 26 -[2-(2-[2-(2-[2-(2-[4-(21-carboxyheneicosanoylamino)-4 (S)-carboxybutanoylamino]ethoxy)ethoxy]acetylamino)ethoxy]ethoxy) acetyl][Gly8, Arg34]GLP-1-(7-37) peptide.
5 . A pharmaceutical composition comprising the compound according to claim 1 , and a pharmaceutically acceptable excipient.
6 . A compound selected from the group consisting of:
N-ε 26 -[2-(2-[2-(4-[19-carboxynonadecanoylamino]-4 (S)-carboxybutanoylamino)ethoxy]ethoxy) acetyl][Gly8, Arg34]GLP-1-(7-37) peptide; and
N-ε 26 -[2-(2-[2-(2-[2-(2-[4-(21-carboxyheneicosanoylamino)-4 (S)-carboxybutanoylamino]ethoxy)ethoxy]acetylamino)ethoxy]ethoxy) acetyl][Gly8, Arg34]GLP-1-(7-37) peptide,
or a pharmaceutically acceptable salt, amide or ester thereof.
7 . A pharmaceutical composition comprising the compound according to claim 6 , and a pharmaceutically acceptable excipient.
8 . A compound having the structure:
wherein the amino acid sequence in the compound is that of SEQ ID NO: 2.
9 . A pharmaceutical composition comprising the compound according to claim 8 , and a pharmaceutically acceptable excipient.
10 . A compound having the structure:
wherein the amino acid sequence in the compound is that of SEQ ID NO: 2.
11 . A pharmaceutical composition comprising the compound according to claim 10 , and a pharmaceutically acceptable excipient.