PD 102807 - CAS 23062-91-1
Category: Inhibitor
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Molecular Formula:
C23H24N2O4
Molecular Weight:
392.45
COA:
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Targets:
mAChR
Description:
PD 102807 is a selective mAChR M4 antagonist with IC50 values of 91, 6559, 3441, 95 and 7412 nM for human M4, M1, M2, M3, and M5 receptors respectively.
Purity:
≥98% by HPLC
Synonyms:
PD 102807; PD102807; PD-102807; 3,6a,11,14-Tetrahydro-9-methoxy-2-methyl-(12H)-isoquino[1,2-b]pyrrolo[3,2-f][1,3]benzoxazine-1-carboxylic acid, ethyl ester
MSDS:
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InChIKey:
VDDUJINYXKGZLV-UHFFFAOYSA-N
InChI:
InChI=1S/C23H24N2O4/c1-4-28-23(26)20-13(2)24-18-7-8-19-17(21(18)20)12-25-10-9-14-11-15(27-3)5-6-16(14)22(25)29-19/h5-8,11,22,24H,4,9-10,12H2,1-3H3
Canonical SMILES:
CCOC(=O)C1=C(NC2=C1C3=C(C=C2)OC4C5=C(CCN4C3)C=C(C=C5)OC)C
1.Pharmacological characterization of muscarinic receptors in dog isolated ciliary and urinary bladder smooth muscle.
Choppin A;Eglen RM Br J Pharmacol. 2001 Feb;132(4):835-42.
1. The pharmacological characteristics of muscarinic receptors mediating contraction of dog isolated ciliary muscle were determined and compared to those mediating contraction of dog urinary bladder smooth muscle. 2. (+)-Cis-dioxolane induced concentration-dependent contractions of ciliary muscle (pEC50=7.18+/-0.07, Emax=453+/-64 mg, n=19) and urinary bladder isolated smooth muscle (pEC50=6.55+/-0.07, Emax=11+/-1 g, n=19). These responses were antagonized by several muscarinic receptor antagonists (pKb values for the ciliary muscle and the bladder smooth muscle, respectively): atropine (8.25+/-0.14 and 9.21+/-0.09), pirenzepine (6.31+/-0.13 and 6.70+/-0.25), tolterodine (7.97+/-0.14 and 8.68+/-0.12), oxybutynin (7.40+/-0.08 and 7.88+/-0.12), zamifenacin (6.46+/-0.19 and 7.69+/-0.11), S-secoverine (6.66+/-0.14 and 8.13+/-0.07), AQ-RA 741 (6.16+/-0.15 and 7.08+/-0.23), p-F-HHSiD (7.10+/-0.27 and 7.35+/-0.07) and responses were not antagonized by PD 102807 (up to 100 nM). 3. In urinary bladder smooth muscle, the profile of antagonist pKB values correlated significantly with pK(i) values at human recombinant m3 muscarinic receptors, suggesting that M3 muscarinic receptors mediated the response.
2.Characterization of the muscarinic receptor in isolated uterus of sham operated and ovariectomized rats.
Choppin A;Stepan GJ;Loury DN;Watson N;Eglen RM Br J Pharmacol. 1999 Aug;127(7):1551-8.
1. The pharmacological characteristics of muscarinic receptors in rat isolated uterus were studied in ovariectomized (ov.) and sham operated (sh.) animals. 2. Competition radioligand binding studies, using uterine membranes and [3H]-NMS, were undertaken with several muscarinic receptor antagonists. Most of the antagonists indicated a one-site fit with apparent affinity estimates (pKi) unchanged by ovariectomy. The selective M2 antagonist, tripitramine revealed high (representing 33+/-8 and 38+/-2%) and low (67+/-8 and 62+/-2%) affinity binding sites in both sh. and ov. rat uterus, respectively. These sites likely represented muscarinic M2 and M3 receptors and the proportions were not significantly different in the two conditions. 3. Carbachol induced concentration-dependent contractions which were surmountably antagonized by several muscarinic receptor antagonists (pKB, sh.; ov.): zamifenacin (9.19; 9.18), p-F-HHSiD (8. 50; 9.06), tripitramine (7.23; 7.54), himbacine (7.21; 7.41), methoctramine (6.79; 7.49), pirenzepine (6.48; 7.21), AF DX 116 (6. 26; 6.61), MTx 3 (<7.00; <7.00) and PD 102807 (<7.00; <7.00). 4. The apparent affinity values obtained in functional studies using the uteri from both sh.
3.Pharmacological characterization of muscarinic receptor subtypes mediating vasoconstriction of human umbilical vein.
Pujol Lereis VA;Hita FJ;Gobbi MD;Verdi MG;Rodriguez MC;Rothlin RP Br J Pharmacol. 2006 Mar;147(5):516-23.
The present study attempted to pharmacologically characterize the muscarinic receptor subtypes mediating contraction of human umbilical vein (HUV).HUV rings were mounted in organ baths and concentration-response curves were constructed for acetylcholine (ACh) (pEC50: 6.16+/-0.04; maximum response 80.00+/-1.98% of the responses induced by serotonin 10 microM). The absence of endothelium did not modify the contractile responses of ACh in this tissue. The role of cholinesterases was evaluated: neither neostigmine (acetylcholinesterase inhibitor) nor iso-OMPA (butyrylcholinesterase inhibitor) modified ACh responses. When both enzymes were simultaneously inhibited, a significantly but little potentiation was observed (control: pEC50 6.33+/-0.03; double inhibition: pEC50 6.57+/-0.05). Atropine, nonselective muscarinic receptors antagonist, inhibited ACh-induced contraction (pKB 9.67). The muscarinic receptors antagonists pirenzepine (M1), methoctramine (M2) and pFHHSiD (M3) also antagonized responses to ACh. The affinity values estimated for these antagonists against responses evoked by ACh were 7.58, 6.78 and 7.94, respectively. On the other hand, PD 102807 (M4 selective muscarinic receptors antagonist) was ineffective against ACh-induced contraction.
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CAS 23062-91-1 PD 102807

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