WO1995000161A1 - Neuropeptide y antagonists and agonists - Google Patents
Neuropeptide y antagonists and agonists Download PDFInfo
- Publication number
- WO1995000161A1 WO1995000161A1 PCT/US1994/006837 US9406837W WO9500161A1 WO 1995000161 A1 WO1995000161 A1 WO 1995000161A1 US 9406837 W US9406837 W US 9406837W WO 9500161 A1 WO9500161 A1 WO 9500161A1
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- Prior art keywords
- ala
- arg
- lys
- group
- homo
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
- C07K14/57545—Neuropeptide Y
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/02—Drugs for disorders of the urinary system of urine or of the urinary tract, e.g. urine acidifiers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/12—Antihypertensives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- This invention relates to peptide derivatives which are antagonists or agonists of neuropeptide Y.
- Neuropeptide Y is a 36-residue peptide characterized by a tyrosine (Y) residue at its N-terminus and a tyrosine amide residue at its C-terminus.
- the peptide was isolated from porcine brain (Tatemoto Proc. Natl . Acad. Sci . U.S.A. 79:5485-5489, 1982) and is considered to be a neurotransmitter or neuromodulator widely distributed in the central and peripheral nervous systems (Allen et al., Neurochem . Int . 8:1-8, 1986). It is the most abundant peptide present in the mammalian brain and heart (Edvinsson et al., Trends Pharmol .
- NPY elicits several physiological responses by activating specific pre- and post-synaptic receptors. Centrally, NPY is thought to be involved in the regulation of food intake, memory
- NPY seems to function as a transmitter in sympathetic nerves where it interacts with norepinephrine mainly in the regulation of vasculartone (Sheikh et al. FEBS Lett . 245:209-214, 1989).
- NPY receptors in rat cardiac ventricular membranes discriminate between NPY and peptide YY but bind NPY (13-36)
- this system be classified as a subtype of Y2 or a new class (designated Y3) of receptors as discussed below (Balasubramaniam et al. Peptides 11:545-550, 1990).
- NPY is also present in high concentrations in a distinct population of nerve fibers innervating the heart and blood vessels (Wharton et al., Ann . N. Y. Acad. Sci . 611:133-144, 1990). NPY is now regarded as the
- NPY is a potent vasopressor peptide and that it inhibits the coronary blood flow and contractility in isolated perfused hearts (e.g., see Balasubramaniam et al., Regul . Pept . 21:289-299, 1988; Allen et al. Regul . Pept . 6:247-253, 1983; Rioux et al. Peptides 7:27-31, 1986). Furthermore, NPY is also capable of (1) inhibiting the contractile force of isolated cardiac muscles (Balasubramaniam et al.
- NPY has been implicated in the pathophysiology of a number of diseases including, without limitation, obesity, hypertension and chronic heart failure (CHF) because: (1) hypothalamic NPY levels are elevated in obese rats and decreased in cancer anorectic rats; (2) plasma NPY levels are elevated in CHF and hypertensive patients; (3) negative cardiac inotropic and chronotropic actions; and (4) inhibition of libido and circadian rhythm.
- CHF chronic heart failure
- the invention features analogs which behave as NPY antagonists and agonists.
- the present invention features compounds having the formula:
- each R 1 and R 2 independently, is H, C 1 -C 12 alkyl
- C 6 -C 18 aryl e.g., phenyl
- C 1 -C 12 acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 aralkyl e.g., benzyl
- C 7 -C 18 alkaryl e.g., p-methylphenyl
- a 1 is Tyr, or any aromatic amino acid
- a 2 is Pro, Hyp, D-Ala, N-Me-Ala, Ac 6 c, D-Pal or Asp;
- a 3 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ile, Val, Aib, Anb,
- a 4 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 5 is Pro, Hyp, D-Ala, N-Me-Ala, Ac 6 c, D-Pal, or D-Trp;
- a 6 is Gly or is the D- or L- isomer selected from the group consisting of Asp, Glu, N-Me-Asp, Ala, or Aoc;
- Y is A 7 -A 8 -A 9 -A 10 -A 11 -A 12 -A 13 -A 14 -A 15 -A 16 -A 17 -A 18 -
- a 7 is Asn, Ala, Gln, Gly, or N-Me-Asn;
- a 8 is Pro, Ser, Thr, Hyp, D-Ala, N-Me-Ala, Ac 5 c, or D-Pal;
- a 9 is Gly, N-Me-Gly, Ala, or Trp;
- a 10 is Glu, Asp, N-Me-Glu, Ala, or Nva;
- a 11 is Asp, Glu, N-Me-Asp, Ala, or Anb;
- a 12 is Ala, Nal, Thi , Phe, Bth, Pep, or N-Me-Ala;
- a 13 is Pro, Hyp , D-Ala , N-Me-Ala , Ac 6 c, D-Pal ,
- a 14 is Ala, Pro, Hyp, D-Ala, N-Me-Ala, Ac 6 c, D-Pal
- a 15 is Glu, Asp, N-Me-Glu, Ala , or Nva;
- a 16 is Asp, Glu, N-Me-Asp, Ala, or Anb;
- a 17 is Met, Leu, Ile, Val , Aib, Anb, Nle,
- a 18 is Ala, Asn, Gln, Gly, N-Me-Asn, Nal , Thi ,
- a 19 is the D- or L- isomer selected from the group consisting of Lys, Arg, homo-Arg, diethyl- homo-Arg, Lys- ⁇ -NH-R (where R is H, a
- a 20 is Tyr, or any aromatic amino acid
- a 21 is Tyr, or any aromatic amino acid
- a 22 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ala, Nal,
- a 23 is Ala, Ser, Thr, Nal, Thi, Phe, Bth, Pep, N- Me-Ala, N-Me-Ser, or N-Me-Thr;
- a 24 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 25 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 26 is the D- or L- isomer selected from the group
- a 27 is the D- or L- isomer selected from the group
- a 28 is Aib or is the D- or L- isomer selected from the
- a 29 is Asn, Ala, Gln, Gly, N-Me-Asn or is deleted;
- a 30 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 31 is Ile, Cys, Leu, Val, Aib, Anb, or N-Me-Ile;
- a 32 is the D- or L- isomer selected from the group
- Trp 2-chlorotroptophan
- a 33 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, or is deleted;
- a 34 is Gln, Asn, N-Me-Gln, Nle, Nva, Ala, or Gly;
- a 35 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 36 is Tyr, or any aromatic amino acid
- W is -OH, -N-R 3 R 4 , or OR 5 (where R 3 , R 4 , and R 5 ,
- each bond can represent either a peptide bond or a pseudopeptide bond, provided that said compound cannot contain more than 3 pseudopeptide bonds, or a pharmaceutically acceptable salt thereof.
- said pseudopeptide bond is between amino acid residues A 29 -A 30 , A 34 -A 35 , and A 35 -A 36 .
- Preferred compounds formula (I) include those in which A 32 is D-Trp, D-Phe, D-Tyr, D-Bip, D-Dip, D-Bth, D- Nal, 2-Cl-Trp, Tcc, Trp, or a pharmaceutically acceptable salt thereof.
- the compounds of formula (I) include those in which Y (A 7 -A 24 ) is deleted.
- the compound of formula (I) is [D-Trp 32 ]NPY, cyclo (2/27) Des-AA 7- 24 [Asp 2 , D-Ala 6 , D-Lys 27 , D-Trp 32 ]NPY, Des-AA 7-24 [D-Ala 5 , Aoc 6 , D-Trp 32 ]NPY, Des-AA 7-24 [D-Ala 5 , Gly 6 , D-Trp 32 ]NPY or Des-AA 7-24 [D-Trp 5 , Aoc 6 , D-Trp 32 ]NPY .
- the invention features a compound having the formula:
- X is a chain of 0-7 amino acids, inclusive the N-terminal one of which is bonded to each R 2 and R 2 ; wherein each R 1 and R 2 , independently, is
- C 1 -C 12 alkyl e.g., methyl
- C 6 -C 18 aryl e.g., phenyl
- C 1 -C 12 acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 aralkyl e.g., benzyl
- C 7 - C 18 alkaryl e.g., p-methylphenyl
- a 27 is the D- or L- isomer selected from the group
- a 28 is Aib or is the D- or L- isomer selected from the group consisting of Ile, Leu, Val, Anb, Trp, N-Me-Ile, or is deleted;
- a 29 is Asn, Ala, Gln, Gly, N-Me-Asn, or is deleted;
- a 30 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu, or is
- a 31 is Ile, Cys, D-Ala, Leu, Val, Aib, Anb, N-Me-Ile,
- a 32 is the D- or L- isomer selected from the group
- Trp 2-chlorotroptophan
- a 33 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, or is deleted;
- a 34 is Gln, Asn, N-Me-Gln, Nle, Nva, Ala, or Gly;
- a 35 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 36 is Tyr, or any aromatic amino acid
- W is -OH, -N-R 3 R 4 , or OR 5 (where each R 3 , R 4 , and R 5 , independently, is
- each bond can represent either a peptide bond or a pseudopeptide bond, provided that said compound cannot contain more than 3 pseudopeptide bonds, or a pharmaceutically acceptable salt thereof.
- Preferred compounds of formula (II) include those where X is A 20 -A 21 -A 22 -A 23 -A 24 -A 25 -A 26 where A 20 is Tyr, or any aromatic amino acid;
- a 21 is Tyr, or any aromatic amino acid
- a 22 is Ser, Thr, N-Me-Ser, or N-Me-Thr;
- a 23 is Ala, Ser, Thr, Nal, Thi, Phe, Bth, Pep, N- Me-Ala, N-Me-Ser, or N-Me-Thr;
- a 24 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 25 is the D- or L- isomer selected from the group consisting of Lys, Arg, homo-Arg, diethy1-homo-Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 26 is the D- or L- isomer selected from the group consisting of His, Thr, 3-Me-His, ⁇ - pyrazolylalanine, N-Me-His, Lys, Arg, homo- Arg, diethyl-homo-Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- W is -OH, -N-R 3 R 4 , or OR 5 (where each R 3 , R 4 , and R 5 , independently, is
- acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 alkaryl or a pharmaceutically acceptable salt thereof.
- said pseudopeptide bond is between amino acid residues A 29 -A 30 , A 34 -A 35 , and A 35 -A 36 .
- the compound of formula (II) is [D-Trp 28 , D-Trp 32 ]NPY (27-36), (Des-Asn 29 [D-Trp 28 , D-Trp 32 ]NPY(27-36), Des-Asn 29 [D-Trp 28 , D-Trp 32 , Nva 34 ]NPY(27-36), Des-Asn 29 [Trp 28 , Trp 32 , Nva 34 ]NPY (27-36), and [D-Trp 28 , Ant 32 , Nva 34 ]NPY(27-36), Des-Asn 29 [D-Trp 28 , Ant 32 , Nva 34 ]NPY(27-36), or Des-Asn 29 , Arg 33 [D-Trp 28 , Ant 32 , Nva 34 ]NPY(27-36).
- the invention features a
- each R 1 and R 2 is H, C 1 -C 12 alkyl (e.g., methyl), C 6 -C 18 aryl (e.g., phenyl), C 1 -C 12 acyl (e.g., formyl, acetyl, and myristoyl),
- C 7 -C 18 aralkyl e.g., benzyl
- a 1 is Tyr, or any aromatic amino acid
- a 2 is Pro, Hyp, D-Ala, N-Me-Ala, Ac 6 c, D-Pal or Asp;
- a 3 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ile, Val, Aib, Anb,
- a 4 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 5 is Pro, Hyp, D-Ala, N-Me-Ala, Ac 6 c, D-Pal, or D-Trp;
- a 6 is Gly or is the D- or L- isomer selected from the group consisting of Asp, Glu, N-Me-Asp, Ala, or
- a 7 is Cys, Glu, Asn, Ala, Gln, Gly, or N-Me-Asn;
- a 8 is Pro, Ser, Thr, Hyp, D-Ala, N-Me-Ala, Ac 6 c, or D- Pal;
- a 9 is Gly, N-Me-Gly, Ala, or Trp;
- Y is A 10 -A 11 -A 12 -A 13 -A 14 -A 15 -A 16 -A 17 or is absent, where
- a 10 is Glu, Asp, N-Me-Glu, Ala, or Nva
- a 11 is Asp, Glu, N-Me-Asp , Ala, or Anb;
- a 12 is Ala , Nal , Thi , Phe , Bth, Pep, or N-Me-Ala;
- a 13 is Pro, Hyp, D-Ala, N-Me-Ala , Ac 6 c, D-Pal ,
- a 14 is Ala, Pro, Hyp, D-Ala, N-Me-Ala , Ac 6 c, D-Pal
- a 15 is Glu, Asp, N-Me-Glu, Ala, or Nva;
- a 16 is Asp, Glu, N-Me-Asp, Ala , or Anb;
- a 17 is Met, Leu, Ile, Val , Aib, Anb, Nle,
- a 18 is , Ala, Asn, Gln, Gly, N-Me-Asn, Nal, Thi , Phe, Bth,
- a 19 is the D- of L- isomer selected from the group
- Arg consisting of Arg, D-homo-Arg, D-diethyl-homo-Arg, D-Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 20 is Tyr, or any aromatic amino acid
- a 21 is Cys, Lys, Tyr, or any aromatic amino acid
- a 22 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ala, Nal, Thi, Phe,
- a 23 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ala, Nal, Thi, Phe,
- a 24 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 25 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 26 is the D- or L- isomer selected from the group
- R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 27 is the D- or L- isomer selected from the group
- a 28 is Aib or is the D- or L- isomer selected from the
- a 29 is Asn, Ala, Gln, Gly, N-Me-Asn or is deleted;
- a 30 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 31 is Ile, Cys, Leu, Val, Aib, Anb, or N-Me-Ile;
- a 32 is the D- or L- isomer selected from the group
- Trp 2-chlorotroptophan
- a 33 is the D- or L- isomer is selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, is deleted;
- a 34 is Gln, Asn, N-Me-Gln, Nle, Nva, Ala, or Gly;
- a 35 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 36 is Tyr, or any aromatic amino acid
- W is -OH, -N-R 3 R 4 , or OR 5 (where R 3 , R 4 , and R 5 ,
- each bond can represent either a peptide bond or a pseudopeptide bond, provided that said compound cannot contain more than 3 pseudopeptide bonds, or a pharmaceutically acceptable salt thereof.
- said pseudopeptide bond is between amino acid residues A 29 -A 30 , A 34 -A 35 , and A 35 -A 36 .
- the compound of formula (III) is cyclo(7/21), Des AA 10-17 [Cys 7 , Cys 21 , D-Trp 32 ]NPY, or cyclo(7/21), Des AA 10-17 [Glu 7 , Lys 21 , D-Trp 32 ]NPY.
- the invention features a compound with pseudopeptide bonds having the formula:
- each R 1 and R 2 is H, C 1 -C 12 alkyl (e.g., methyl), C 6 -C 18 aryl (e.g., phenyl), C 1 -C 12 acyl (e.g., formyl, acetyl, and myristoyl), C 7 -C 18 aralkyl (e.g., benzyl), or C 7 -C 18 alkaryl (e.g., p-methylphenyl);
- C 1 -C 12 alkyl e.g., methyl
- C 6 -C 18 aryl e.g., phenyl
- C 1 -C 12 acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 aralkyl e.g., benzyl
- C 7 -C 18 alkaryl e.g., p-methylphenyl
- a 18 is Ala, Asn, Gln, Gly, N-Me-Asn, Nal, Thi, Phe, Bth,
- a 19 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 20 is Tyr, or any aromatic amino acid
- a 21 is Tyr, or any aromatic amino acid
- a 22 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ala, Nal, Thi, Phe,
- a 23 is Ser, Thr, N-Me-Ser, N-Me-Thr, Ala, Nal, Thi, Phe,
- a 24 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 25 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 26 is the D- or L- isomer selected from the group
- R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 27 is the D- or L- isomer selected from the group
- a 28 is Aib or is the D- or L- isomer selected from the
- a 29 is Asn, Ala, Gln, Gly, N-Me-Asn, or is deleted;
- a 30 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 31 is Ile, Cys, Leu, Val, Aib, Anb, or N-Me-Ile;
- a 32 is the D- or L- isomer selected from the group
- Trp 2-chlorotroptophan
- a 33 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, or is deleted;
- R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, or is deleted;
- a 34 is Gln, Asn, N-Me-Gln, Nle, Nva, Ala, or Gly;
- a 35 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 36 is Tyr, or any aromatic acid
- W is -OH, -N-R 3 R 4 , or OR 5 (where each R 3 , R 4 , and R 5 ,
- C 1 -C 12 alkyl e.g., methyl
- C 6 -C 18 aryl e.g., phenyl
- C 1 -C 12 acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 aralkyl e.g., benzyl
- C 7 - C 18 alkaryl e.g., p-methylphenyl
- each bond can represent either a peptide or a pseudopeptide bond, provided that said compound cannot contain more than 3 pseudopeptide bonds, or a pharmaceutically acceptable salt thereof.
- the compound contains a
- the invention features a method of suppressing an NPY mediated physiological response in a tissue other than the heart in a subject comprising administering to said subject a compound having the following formula:
- each R 1 and R 2 is H, C 1 -C 12 alkyl (e.g., methyl), C 6 -C 18 aryl (e.g., phenyl), C 1 -C 12 acyl (e.g., formyl, acetyl, and myristoyl), C 7 -C 18 aralkyl (e.g., benzyl), or C 7 -C 18 alkaryl (e.g., p-methylphenyl);
- C 1 -C 12 alkyl e.g., methyl
- C 6 -C 18 aryl e.g., phenyl
- C 1 -C 12 acyl e.g., formyl, acetyl, and myristoyl
- C 7 -C 18 aralkyl e.g., benzyl
- C 7 -C 18 alkaryl e.g., p-methylphenyl
- a 18 is Ala, Asn. Nal, Thi, Phe, Bth, Pep, or N-Me-Ala;
- a 19 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 20 is Tyr, or any aromatic amino acid
- a 21 is Tyr, or any aromatic amino acid
- a 22 is Ser, Thr, N-Me-Ser, or N-Me-Thr;
- a 23 is Ala, Ser, Nal, Thi, Phe, Bth, Pep, or N-Me-Ala;
- a 24 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 25 is the D- or L- isomer selected from the group
- a 26 is the D- or L- isomer selected from the group
- R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 27 is the D- or L- isomer selected from the group
- a 28 is Aib or is the D- or L- isomer selected from the group consisting of Ile, Leu, Val, Anb, Trp, N-Me-Ile, or is deleted;
- a 29 is Asn, Ala, Gln, Gly, N-Me-Asn, or is deleted;
- a 30 is Leu, Ile, Val, Aib, Anb, or N-Me-Leu;
- a 31 is Ile, Cys, Leu, Val, Aib, Anb, or N-Me-Ile;
- a 32 is the D- or L- isomer selected from the group
- Trp 2-chlorotroptophan
- a 33 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), Orn, or is deleted;
- a 34 is Gln, Asn, N-Me-Gln, Nle, Nva, Ala, or Gly;
- a 35 is the D- or L- isomer selected from the group
- Lys consisting of Lys, Arg, homo-Arg, diethyl-homo- Arg, Lys- ⁇ -NH-R (where R is H, a branched or straight chain C 1 -C 10 alkyl group, or a C 6 -C 18 aryl group), or Orn;
- a 36 is Tyr, or any aromatic acid
- W is -OH, -N-R 3 R 4 , or OR 5 (where each R 3 , R 4 , and R 5 ,
- each bond can represent either a peptide bond or a pseudopeptide bond, provided that said compound cannot contain more than 3 pseudopeptide bonds, or a pharmaceutically acceptable salt thereof.
- said pseudopeptide bond is between amino acid residues A 29 -A 30 , A 34 -A 35 , and A 35 -A 36 . or a pharmaceutically acceptable salt thereof.
- the method suppresses the activity of the NPY (Y-1) receptor or the NPY (Y-2) receptor.
- the invention features a method of suppressing a NPY(Y-1) receptor mediated physiological response in the hypothalamus of a subject comprising administering to said subject the compound of formula
- the invention features a method of suppressing the blood pressure of a subject
- the invention features a method of suppressing a NPY(Y-3) receptor mediated physiological response in the cardiovascular system of a subject comprising administering to said subject the compound of formula (IV).
- compositions capable of suppressing an NPY mediated physiological response.
- This composition can be in the form a pill, tablet, capsule, liquid, or sustained released tablet for oral administration; or a liquid for nasal administration as drops or spray; or a liquid for intravenous,
- biodegradable sustained-release composition for example,
- the composition includes a lipophilic salt and is suitable for administration in the form of an oil emulsion or dispersion to a subject in need of the composition.
- the invention features methods for suppressing an NPY mediated physiological response in a subject; such methods involve administering one or more of the above mentioned compounds to a subject in a dosage effective to lower blood pressure; to suppress the appetite; to augment the libido; to
- the invention features methods for stimulating an NPY mediated physiological response in a subject; such methods involve administering one or more of the above mentioned compounds to a subject in a dosage effective to increase blood pressure; to increase the appetite; to augment the libido; or to stimulate cardiovascular function.
- R is -CH 2 COOH for Asp
- R is -H for Gly
- R is -CH 2 OH for Ser
- R is -CH 3 for Ala
- R is -CH 2 CH 2 CH 2 CH 2 NH 2 for Arg.
- the amino acid residue is optically active, it is the L-form configuration that is intended unless the D-form is expressly designated.
- pseudopeptide bond is meant that the carbon atom
- the compounds of Formulae (I), (II), (III), or (IV) are cyclic.
- the cyclization is formed by a disulfide or lactam bridge (amide bond).
- the disulfide or amide bond which links two residues in a compound of the invention are formed between the side chain functionalities. That is, between the side-chain
- a compound of this invention is also denoted by another format, e.g.
- Preferred cyclic compounds of the invention are cyclo (2/27) Des AA 7-24 [Asp 2 , D-Ala 6 , D-Lys 27 , D-Trp 32 ] NPY and cyclo(7/21) Des AA 10-17 [Cys 7 , Cys 21 , D-Trp 32 ]NPY.
- the invention features novel dimeric analogs of NPY.
- the dimer may be formed by either including one compound of Formula I, II, II, or IV and one compound of Formula I, II, III, or IV. In one embodiment, the dimer is formed by utilizing a
- the dimer is formed by utilizing an amino acid linker capable of binding to a free amine group of one compound and a free carboxylic acid group of the other compound.
- the amino acid linker is a non- ⁇ -amino acid.
- suitable amino acid linkers are amino-caproic acid and amino-valeric acid.
- the dimer is formed by
- Preferred dimeric compounds of the invention are Bis(31/31) [Cys 31 , Trp 32 , Nva 34 ]NPY (27-36), and Bis(31/31) (Cys 31 , Trp 32 , Nva 34 ]NPY (31-36),
- Aoc (8-aminooctanoic acid:
- Tic tetrahydroisoquinoline-3-carboxylic acid
- Aib aminoisobutyric acid
- D-Pal ⁇ -(3-pyridyl)alanine
- Ant anthranilic acid
- the compounds of the invention are useful for reducing, suppressing or mitigating the effects of NPY.
- the compounds of the invention are
- NPY antagonists as described herein, allows for the selective antagonism of different classes of NPY receptors, e.g., Y3 cardiac receptors, without adverse interaction with other NPY receptors.
- the compounds are also useful for stimulating NPY receptor mediated events, e.g., increasing the blood pressure of a subject.
- Fig. 1 shows the comparison of the effects of D-Trp or D-Trp(CHO) substituted NPY analogs (1.0 ⁇ M) on the isoproternol stimulated adenylate cyclase activity of rat hypothalmic membranes. Iso, isoproternol.
- Fig. 2 shows the displacement of 125 I-NPY bound to rat hypothalamic membranes by increasing concentrations NPY (•) and [D-Trp 32 ] NPY ( ⁇ ).
- Fig. 3 shows the dose-response effects of increasing concentrations of [D-Trp 32 ] NPY ( ⁇ ), NPY alone (•); NPY in the presence of 30 ( ⁇ ) and 300 ( ⁇ ) nM doses of [D-Trp 32 ] NPY on the isoproterenol stimulated adenylate cyclase activity of rat hypothalamic membranes.
- Fig. 4 shows the comparison of the effects of [D-Trp 32 ]NPY (1.0 ⁇ M) on the inhibition of isoproterenol stimulated adenylate cyclase activity of rat hypothalamic membranes by NPY (100 nM) and serotonin (100 nM).
- a p ⁇ 0.01 compared to isoproterenol;
- b not significant compared to isoproterenol .
- Fig. 5 shows the antagonism of NPY induced feeding in rats by [D-Trp 32 ]NPY.
- Fig. 6 shows the effects of 1 ⁇ M doses of NPY and its analogs [L-Trp 32 ] NPY, [D-Trp 32 (CHO)] NPY, [D-Nal 32 ] NPY, [D-Hyp 32 ] NPY, [(3-1-Tyr 27 ), D-Trp 32 ] NPY, and
- Fig. 7 shows the effects of increasing
- Fig. 8 shows the effects of increasing
- Fig. 9 shows the effects of increasing
- Fig. 10 shows the effects of NPY (o), NPY (18-36) ( ⁇ ) and NPY in the presence of 1 ⁇ M dose of NPY (18-36) (•) on forskolin stimulated cAMP production by SK-N-BE2 cells.
- Figs. 11A-11C show the analytical RPLC of [ ⁇ 30-31 ] NPY (18-36) (11A), [ ⁇ 32-33 ] NPY (18-36) (11B), and [ ⁇ 33-34 ] NPY (18-36) (11C).
- Fig. 12 shows the inhibition of 125 I-NPY binding to rat cardiac ventricular membrane by NPY (o), NPY (18-36) ( ⁇ ), [ ⁇ 30/31 ] NPY (18-36) ( ⁇ ), [ ⁇ 31/32 ] NPY (18-36) ( ⁇ ), and [ ⁇ 32/33 ] NPY (18-36) ( ⁇ ).
- amino acids 1-36 comprising amino acids of NPY and PYY and derivatives thereof; and upon the biologically active subfragments comprising amino acids of NPY and PYY and derivatives thereof.
- the analogs of the invention may have one or more modifications to the NPY and PYY sequences (see above).
- the compounds may have one or more of the following modifications which are useful for obtaining selective activity at a NPY receptor: a D-Trp or Aoc or D-Ala in place of one or two or three natural amino acids; or a deletion of several N-terminal amino acids; or the introduction of a pseudopeptide bond instead of a peptide bond between two adjacent amino acids.
- the analog is capable of acting as a competitive inhibitor of the naturally occurring NPY peptide by binding to the receptor and, by virtue of one of the modifications described supra herein, fail to exhibit the biological activity of the naturally occurring peptide.
- analogs of the invention can be provided in the form of pharmaceutically acceptable salts.
- preferred salts are those with therapeutically
- organic acids e.g., acetic, lactic, maleic, citric, malic, ascorbic, succinic, benzoic, or pamoic acid, as wells as polymeric acids and slats with
- inorganic acids such as the hydrohalic acids, e.g., hydrochloric and sulfuric acids.
- the compounds of the present invention i.e., compounds of formulas (I), (II), (III), (IV), and (V) may be synthesized by any techniques that are known to those skilled in the peptide art. Such techniques are
- composition and primary structure are composition and primary structure.
- Other analogs can be prepared by making appropriate modifications, within the ability of someone of ordinary skill in this field.
- pseudopeptide bonds may, if desired, may be introduced at various positions, e.g., between amino acid residues 31-32 of NPY(18-36) or between residues 32-33 of NPY(18-36), or of any peptide as described below.
- any suitable in vivo or in vitro system may be utilized to assay and test the effectiveness of the compounds of the invention.
- Such assays may employ in vivo methods for evaluating physiological responses, e.g., blood pressure, renovascular function, feeding behavior, or circadian rhythm, or in vivo biochemical systems evaluating receptor binding in a suitable cell line, e.g., SK-N-MC (ATCC#HBT 10) or SK-N-BE(2) (Barnes et al. In Vitro 17: 619-631, 1981); or in isolated cells, e.g., cells isolated from the spleen, kidney, heart or brain.
- SK-N-MC ATCC#HBT 10
- SK-N-BE(2) Barnes et al. In Vitro 17: 619-631, 1981
- isolated cells e.g., cells isolated from the spleen, kidney, heart or brain.
- NPY receptors e.g. the Y-1, Y-2, and Y-3 receptor categories. Described below are assay methods which can be utilized with cell lines such as SK-N-MC and SK-N-BE2 or isolated cardiac membranes which possess the high-affinity NPY receptor sites Y-1, Y-2, and Y-3, respectively.
- Other systems are also known for evaluating NPY antagonists to the Y-1 receptor, e.g. VSM cells (Sheikh et al., Am . J. Physiol . 260: G250-G257, 1991) and HEL cells (Motulsky et al.
- Y-2 receptor e.g., kidney (Sheikh et al.. Am. J. Physiol 26:F978-F984), spleen (Lunberg et al., Eur. J. Pharmal. 145:21-29, 1988), dorsal root ganglion (Bleakman et al., Br. J. Pharmal. 103:1781-1789, 1991) and hippocampal cells (Sheikh et al., J. Biol.
- Y-3 receptors e.g., in cardiac ventricular membranes (Balasubramaniam et al.. Peptides 11: 545-550, 1990), chromaffin cells, rat gastric mucosa (Michel, M.C., Trends in Pharmol . Sci . 12: 389-394, 1991) and brain stem.
- the ability of the compounds of the invention to act as antagonists of NPY can be demonstrated by any number of methods known in the art. For example, the compounds can be shown to compete with iodinated
- rat hypothalamus was isolated and the membranes were prepared for binding and adenylate cyclase studies according to standard methods (Unden et al. 1984. Eur. J. Biochem 145: 525-530; Westlind-Danielsson et al. 1987. Neurosci . Lett . 74: 237-242). Displacement studies were performed in a total volume of 0.25 ml 20 mM HEPES buffer, pH 7.4, containing 1% bovine serum albumin, 0.1% bacitracin, 300 ⁇ m PMSF and 5 KIU/ml aprotinin.
- NPY neuropeptide
- hypothalamic and cerebral cortex membranes was determined by incubating 50 ⁇ g of membranes in a total volume of 0.20 ml Tris-HCL 30 mM pH 7.4 buffer containing 150 mM NaCl, 8.25 mM MgCl 2 , 0.75 mM EGTA, 1.5 theophylline, 20 ⁇ g/ml aprotinin, 100 ⁇ g/ml bacitracin, 1 mg/ml bovine serum albumin, 1 mM ATP, 20 mM creatine phosphate, 1 mg/ml phosphocreatine kinase, 10 ⁇ M isopreternol, 10 ⁇ M GTP, and various concentrations of peptides (0-10 ⁇ M).
- rat cardiac ventricular membranes and iodination of NPY were prepared according to the method described by Balasubramaniam et al. (Peptides 11: 545-550, 1990). Displacement studies were performed in a total volume of 0.25 ml of 20 mM HEPES assay buffer, pH 7.6, containing 2% bovine serum albumin, 100 ⁇ M
- phenylmethylsulfonyl fluoride 4 ⁇ g/ml leupeptin, 4 ⁇ g/ml chymostatin, 5 kallikrein-inactivating units/ml
- aprotinin and 0.1% bacitracin.
- 200 ⁇ g of membrane protein/tube were incubated for 2 h at 18°C in a shaking water bath with 125 I-NPY (40 pM) and increasing concentrations of peptides.
- tubes were vortexed and 150 ⁇ l aliquots transferred into polypropylene tubes containing 250 ⁇ l of ice-cold assay buffer. Unbound 125 I-NPY was separated by centrifugation at 10,000 ⁇ g for 10 min followed by aspiration of the supernatant. The tubes containing the pellet were counted for bound radioactivity in a Micromedic ⁇ counter.
- Adenylate cyclase activity was measured by Rosselin et al. (Biochim . Biophys . Acta 304:541-551, 1977). Each experiment was carried out in a total volume of 200 ⁇ l solution containing 30 mM Tris-HCl, pH 7.4, 150 mM NaCl, 8.25 mM MgCl 2 0.75 mM EGTA, 1.5 mM theophylline, 20 ⁇ g/ml aprotinin, 100 ⁇ g/ml bacitracin, 1 mg/ml BSA, 1 mM ATP, 20 mM creatine phosphate, 1 mg/ml phosphocreatine kinase, 10 ⁇ M isoproterenol, 10 ⁇ M GTP, and various concentrations of peptides (0-10 ⁇ M).
- the reaction was initiated by the addition of 50 ⁇ g (50 ⁇ l) of membrane protein. After incubation at 35°C for 10 min. in a shaking water bath, the reaction was terminated by the addition of 100 ⁇ M EDTA and boiling for 3 min. cAMP was extracted and quantitated by radioimmunoassay using a kit obtained from New England Nuclear, Boston, MA.
- Any suitable in vivo model system can be used to evaluate the antagonistic properties of the compounds of the invention.
- Such models include those used to evaluate feeding and memory behavior (Flood et al., Peptides 10:963-966), and vasoconstriction and hypertension (Balasubramaniam et al. Biochim et Biophys Acta 997: 176-188, 1989).
- the duration of SBP effect of Des-AA 7*24 [D-Ala 5 , Aoc 6 , D-Trp 32 ]NPY was determined in 3 animals by administering 1.0 nmol/kg of NPY every 15 minutes for 75 minutes following a single 200 nmol/kg dose of Des-AA 7-24 [D-Ala 5 , Aoc 6 , D-Trp 32 ]NPY.
- FIG. 1 shows that at 1.0 ⁇ M, NPY, [D-Trp 34 ]NPY, [D-Trp 36 ]NPY, and the corresponding formulated D-Trp analogs inhibited isoproterenol-stimulated hypothalamic adenylate cyclase activity significantly.
- [D-Trp 32 ]NPY and its formulated derivative did not exhibit significant inhibitory effect on adenylate cyclase activity at this concentration.
- isoproterenol stimulate adenylate cyclase activity both in the absence and presence of [D-Trp 32 ]NPY (1 ⁇ M).
- the antagonism at [D-Trp 32 ]NPY therefore, was specific to the NPY receptor since the analog exhibited no effect on the inhibitory hypothalamic AC activity of serotonin and, thus, did not act as a global antagonist.
- Des-AA 7-24 [Aoc 6 , D-Trp 32 ]NPY exhibited poor affinity to Y-1 receptors (Table I), and therefore, failed to antagonize the inhibitory effects of NPY on SK-N-MC cAMP production.
- Des-AA 7-24 [D-Ala 5 , Aoc 6 , D-Trp 32 ]NPY surprisingly exhibited moderate affinity (Table I), and its presence (1.0 ⁇ M) shifted the inhibitory dose-response curve of NPY on SK-N-MC cAMP production parallel to the right (Fig. 7).
- NPY-induced anorectic rats we tested the effects on NPY-induced anorectic rats.
- Fig. 8 shows that NPY doses of 0.1, 1.0 and 10.0 nmol/kg, during baseline, increased systolic blood pressure (SBP) by 8 ⁇ 7, .26 ⁇ 6 and 37 ⁇ 7 mmHg respectively.
- Des-Asn 29 [D-Trp 28 ' 32 ]NPY (27-36) bound with moderate potency to Y-1 receptors, and also did not exhibit any intrinsic activity on isoproterenol stimulated cAMP production by SK-N-MC cells. These observations suggest that Des-Asn 29 [D-Trp 28,32 ]NPY (27-36) or its analogs will prove useful for the development low molecular weight selective antagonist compounds for Y-l receptors.
- the analogs of the invention may also be assayed and tested for NPY receptor Y-2 activity using the methods described supra .
- a compound e.g., [D-Trp 32 ]NPY, can be assayed for antagonism using any Y-2 receptor bearing cell, e.g., the SK-N-BE2 cell line, or such cells found in the spleen, kidney, hippocampus or dorsal root ganglion.
- NPY (18-36), previously shown to be an antagonist of NPY in rat cardiac membranes bearing Y-3 receptors, antagonizes the inhibitory effect on the cAMP production of SK-N-BE2 cells bearing Y-2 receptor
- PEPTIDES IC 50 (nM) for the inhibition of 125 I-NPY binding to:
- reaction vessel 1.0 g peptide resin, 0.8 g p-cresol, 0.2g thiocresol, 0.8 ml (CH 3 ) 2 and 5 ml HF were stirred for 40 min of reaction and an additional 60 min. of HF evacuation. During these procedures
- reaction vessel was kept between 0°C - - 4°C. Then the peptide resin was transferred into a fitted filter funnel in Et 2 O and washed with excess of Et 2 O. Free peptide was extracted with 30% HOAc (2 ⁇ 15ml). Peptide solution was diluted to 10% HOAc (60ml H 2 O) and lyophilized. 390 mg crude peptide was obtained from this procedure.
- Cleavage by HF was as follows: in a eaction vessel 1.0g peptide resin, 0.8 ml (CH 3 )C 2 S, 0.8g p-cresol, 0.2g p-thiocreosl and 5ml HF were stirred for 40 min of reaction in temperature between 0°C - -4°C. After that HF was evacuated in 60. Temperature was still kept below 0°C. The peptide resin was transferred into fitted filter funnel and washed with excess of ET 2 O. The peptide resin extracted with 30ml 30% HOAc. Peptide solution was diluted to 10% HOAc with 60ml H 2 O and protein
- the free peptide was obtained by treating the protected peptide resin (1.0g) with HF (10 ml) containing dimethyl sulfide (0.8 ml), p-cresol (0.2g) for 1 h at -2 to -4 C. The residue was transferred to a fitted filter funnel with diethyl ether, washed repeatedly with diethyl ether, and the peptide extracted with 10% HOAC(2 ⁇ 15 ml) and lyophilized. The crude peptide (100mg) thus obtained was dissolved in 6M guanidine HCL (6 ml) diluted with 500 ml of distilled water and the pH adjusted to 8 with ammonia.
- a solution of potassium ferricyanide (1% w/v) was gradually added with constant stirring until a yellow color persisted.
- the pH of the solution was adjusted to 5 with acetic acid and the solution stirred with an anion exchange resin (AG-3, Cl-form, 10g wet weight) for 30 min, passed through a 0.45 microns filter, and pumped into a semipreparative column (250 ⁇ 10 mm), washed with 0.1%TFA-H 2 O until a flat base line was obtained.
- the column containing the peptide was then subjected to gradient elution as described for NPY, and the purified peptide was characterized by amino acid and mass spectral analysis.
- NPY is a potent vasoconstrictor and or orexigenic agent, as well as an inhibitor of libido and effector of circulation rhythm, it is likely that the administration of one or more compounds of the invention may suppress or inhibit the deleterious effects of NPY. Therefore, the NPY antagonists of the invention are suitable for the treatment of any number of diseases related to cardiovascular function (e.g., congestive heart failure or hypertension), obesity, anorexia, blood pressure, asthma, pulmonary hypertension, renal
- the compounds of formula (I), (II), (III) are useful for treating for controlling feeding disorders and blood pressure; the compounds of formula (IV) are useful for treating any number of heart ailments, e.g., chronic heart failure, as well as
- the compounds of formula (IV) are useful for controlling NPY actions mediated by Y-2 receptor subtypes, e.g., for controlling the effects of NPY on renal blood flow, glomerular filtration rate, natriuresis and renin
- the appropriate NPY antagonist is administered as a therapeutically effective amount of a therapeutically acceptable NPY antagonist.
- an effective amount of an NPY antagonist e.g., ⁇ 30-31 NPY(18-36) is administered via any of the usual and acceptable methods known in the art, either singly or in combination with another compound or compounds of the present invention. These compounds or compositions can thus be administered orally,
- parenterally e.g., intramuscularly, intravenously, subcutaneously, or intradermally
- inhalation e.g., intrahalation
- solid, liquid or gaseous dosage including tablets and suspensions.
- the administration can be conducted in a single unit dosage form with continuous therapy or in a single dose therapy ad libitum.
- a typical administration is oral administration or parenteral administration.
- the daily dose in the case of oral administration is typically in the range of 0.1 to 100 mg/kg body weight, and the daily dose in the case of parenteral administration is typically in the range of 0.001 to 50 mg/kg body weight.
- the therapeutic agents be relatively non-toxic, non-antigenic and non-irritating at the levels in actual use.
Abstract
Description
Claims
Priority Applications (3)
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JP7502963A JPH11501281A (en) | 1993-06-18 | 1994-06-16 | Neuropeptide Y antagonists and agonists |
AU71744/94A AU7174494A (en) | 1993-06-18 | 1994-06-16 | Neuropeptide y antagonists and agonists |
EP94920757A EP0707490A1 (en) | 1993-06-18 | 1994-06-16 | Neuropeptide y antagonists and agonists |
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US7931993A | 1993-06-18 | 1993-06-18 | |
US08/079,319 | 1993-06-18 |
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EP (1) | EP0707490A1 (en) |
JP (1) | JPH11501281A (en) |
AU (1) | AU7174494A (en) |
CA (1) | CA2165200A1 (en) |
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ZA (1) | ZA944338B (en) |
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Title |
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J. MED. CHEM., Volume 32, issued 1989, BOUBLIK et al.: "Synthesis and Hypertensive Activity of Neuropeptide Y Fragments and Analogues with Modified N- or C-Termini or D-Substitutions", pages 597-601, see compounds 1-3, 5-6, 9, 11, 20-21, 23-24. * |
J. MED. CHEM., Volume 35, issued 1992, R.D. FEINSTEIN et al.: "Structural Requirements for Neuropeptide Y18-36-Evoked Hypotension: A Systemic Study", pages 2836-2843, see compounds 1-3, 6-9, 12-15, 19-20, 22-27. * |
J. MED. CHEM., Volume 36, issued 1993, D.A. KIRBY et al.: "Neuropeptide Y: Y1 and Y2 Affinities of the Complete Series of Analogues with Single D-Residues Substitutions", pages 3802-3808, see Table 1. * |
J. MED. CHEM., Volume 36, Number 3, issued 1993, D.A. KIRBY et al.: "Defining Structural Requirements for Neuropeptide Y Receptors using Truncated and Conformationally Restricted Analogs", pages 385-393, see compounds 4,5 and 17. * |
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Also Published As
Publication number | Publication date |
---|---|
AU7174494A (en) | 1995-01-17 |
ZA944338B (en) | 1995-02-14 |
EP0707490A1 (en) | 1996-04-24 |
JPH11501281A (en) | 1999-02-02 |
CA2165200A1 (en) | 1995-01-05 |
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