BIM 189

Bombesin antagonist CAS# 142062-55-3

BIM 189

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Chemical structure

BIM 189

3D structure

Chemical Properties of BIM 189

Cas No. 142062-55-3 SDF Download SDF
PubChem ID 5748499 Appearance Powder
Formula C56H73ClN14O10 M.Wt 1137.73
Type of Compound N/A Storage Desiccate at -20°C
Synonyms [D-Phe<sup>6</sup>,Leu<sup>13</sup>,Cpa<sup>14</sup>]bombesin-(6-14)NH<sub>2</sub>
Solubility Soluble to 2 mg/ml in 20% acetonitrile
Sequence FQWAVGHLF

(Modifications: Phe-1 = D-Phe, Phe-9 = 4-Cl-Phe & C-terminal amide)

Chemical Name (2S)-N-[(2S)-1-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[[(2S)-1-[[(2S)-1-amino-3-(4-chlorophenyl)-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]pentanediamide
SMILES CC(C)CC(C(=O)NC(CC1=CC=C(C=C1)Cl)C(=O)N)NC(=O)C(CC2=CN=CN2)NC(=O)CNC(=O)C(C(C)C)NC(=O)C(C)NC(=O)C(CC3=CNC4=CC=CC=C43)NC(=O)C(CCC(=O)N)NC(=O)C(CC5=CC=CC=C5)N
Standard InChIKey XJWMPWLZAVKSPK-UYBYNCNQSA-N
Standard InChI InChI=1S/C56H73ClN14O10/c1-30(2)21-43(54(79)68-42(49(60)74)23-34-15-17-36(57)18-16-34)69-55(80)45(25-37-27-61-29-64-37)66-47(73)28-63-56(81)48(31(3)4)71-50(75)32(5)65-53(78)44(24-35-26-62-40-14-10-9-13-38(35)40)70-52(77)41(19-20-46(59)72)67-51(76)39(58)22-33-11-7-6-8-12-33/h6-18,26-27,29-32,39,41-45,48,62H,19-25,28,58H2,1-5H3,(H2,59,72)(H2,60,74)(H,61,64)(H,63,81)(H,65,78)(H,66,73)(H,67,76)(H,68,79)(H,69,80)(H,70,77)(H,71,75)/t32-,39+,41-,42-,43-,44-,45-,48-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of BIM 189

DescriptionBombesin antagonist that reduces bombesin-induced satiety.

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Background on BIM 189

IC50: 10.4 nM for rat pancreas; 2.4 nM for Guinea pig pancreas

Bombesin has common effects on the gastrointestinal tract and feeding behavior. Bombesin acts on two types of receptors: one with high affinity for neuromedin B and another with high affinity for bombesin and gastrin-releasing peptide (GRP). BIM 189 is a a new peptide of bombesin antagonis, while BIM 187 is a bombesin agonist.

In vitro: BIM 189 was one of the most potent bombesin antagonists known in the guinea pig and 3T3 cell systems but has 40% partial agonist activity in the rat. Loss of agonism might be attributed to the Cl electron withdrawing effects rather than the size of the Cl since far larger Na114 substitutions did not effect agonist activity [2].

In vivo: BIM 187 at 4 μg/kg, significantly reduced food intake at 30 min in rat, but did not change the total 6-h food intake. BIM 189 (10 mg/kg), had no effect on food intake when administered alone, even at high doses (20 mg/kg). BIM 189 selectively reduced bombesin-induced satiety but had no effect on satiety induced by BIM 187[2].

Clinical trial: Up to now, BIM 189 is still in the preclinical development stage.

Reference:
[1] Coy D, Wang LH, Jiang NY, Jensen R.  Short chain bombesin pseudopeptides with potent bombesin receptor antagonist activity in rat and guinea pig pancreatic acinar cells. Eur J Pharmacol. 1990 Nov 6;190(1-2):31-8.
[2] Laferrère B, Leroy F, Bonhomme G, Le Gall A, Basdevant A, Guy-Grand B.  Effects of bombesin, of a new bombesin agonist (BIM 187) and a new antagonist (BIM 189) on food intake in rats, in relation to cholecystokinin. Eur J Pharmacol. 1992 Apr 29;215(1):23-8.

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References on BIM 189

Effects of bombesin, of a new bombesin agonist (BIM187) and a new antagonist (BIM189) on food intake in rats, in relation to cholecystokinin.[Pubmed:1516647]

Eur J Pharmacol. 1992 Apr 29;215(1):23-8.

To study the mechanism by which bombesin induces satiety, we studied the effect of two new peptides, BIM187, a bombesin agonist, and BIM189, a bombesin antagonist, on food intake in rats fed 6 h a day. BIM187 at 4 micrograms/kg, significantly reduced food intake at 30 min, but did not change the total 6-h food intake. BIM189 (10 mg/kg), had no effect on food intake when administered alone, even at high doses (20 mg/kg). BIM189 selectively reduced bombesin-induced satiety but had no effect on satiety induced by BIM187. To examine the extent to which the satiety effect of bombesin or related peptides depends on the release of cholecystokinin (CCK), we studied the ability of CCK antagonists, BIM18216 and L364718, to reduce satiety induced by bombesin and BIM187. Neither BIM18216 nor L364718 alone had an effect on the 30-min food intake. They were not able to reverse the effect of bombesin on food intake. In our model, bombesin seems to act on satiety by a mechanism independent of CCK.

Short chain bombesin pseudopeptides with potent bombesin receptor antagonist activity in rat and guinea pig pancreatic acinar cells.[Pubmed:1963850]

Eur J Pharmacol. 1990 Nov 6;190(1-2):31-8.

A series of potent bombesin antagonists based on the reduced C-terminal peptide bond modification which in the past resulted in the first really potent antagonists are compared for effects on bombesin-stimulated amylase release from and binding to rat and guinea pig pancreatic acini. It was found that the original member of this series, [Leu13 psi (CH2NH)Leu14] bombesin, displayed partial agonist activity with 11% efficacy in the rat. More recent analogues of this type which were found previously to be even more potent pure antagonists in the guinea pig pancreas or 3T3 cells, exhibited similarly higher binding affinity for rat acini but displayed even higher residual partial agonist activity in the rat. For instance, [D-Phe6,Leu13 psi (CH2NH)Phe14]bombesin-(6-14) was one of the most potent bombesin antagonists known in the guinea pig and 3T3 cell systems but has 40% partial agonist activity in the rat. Several structural modification strategies were developed to remove rat partial agonist properties with retention of high antagonist potency in all systems tested. The most effective of these was the substitution of a Cl on the aromatic ring of the Phe residue (p-Cl-Phe, Cpa) in position 14 to give [D-Phe6,Leu13 psi (CH2NH)Cpa14]bombesin-(6-14). This had higher binding affinities for both rat and guinea pig pancreatic acini and was a pure antagonist on both cell types. Another effective method was alteration of the stereochemistry of the position 14 amino acid in [D-Phe6,Leu13 psi (CH2ND)D-Phe14]bombesin-(6-14) which had somewhat lowered binding affinities but pure antagonist properties.(ABSTRACT TRUNCATED AT 250 WORDS)

Keywords:

BIM 189,142062-55-3,[D-Phe<sup>6</sup>,Leu<sup>13</sup>,Cpa<sup>14</sup>]bombesin-(6-14)NH<sub>2</sub>,Natural Products,Bombesin Receptors, buy BIM 189 , BIM 189 supplier , purchase BIM 189 , BIM 189 cost , BIM 189 manufacturer , order BIM 189 , high purity BIM 189

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