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Volumn 21, Issue 22, 2011, Pages 6899-6904

Identification of novel NK1/NK3 dual antagonists for the potential treatment of schizophrenia

Author keywords

Antipsychotic; Neurokinin receptors; NK1 NK 3 receptor antagonist; Schizophrenia

Indexed keywords

CARBONYL DERIVATIVE; HYDROXYL GROUP; LACTAM DERIVATIVE; METHYL GROUP; NEUROKININ 1 RECEPTOR; NEUROKININ 1 RECEPTOR ANTAGONIST; NEUROKININ 3 RECEPTOR; NEUROKININ 3 RECEPTOR ANTAGONIST; LACTAM; NEUROLEPTIC AGENT;

EID: 80054738939     PISSN: 0960894X     EISSN: 14643405     Source Type: Journal    
DOI: 10.1016/j.bmcl.2011.07.116     Document Type: Article
Times cited : (9)

References (30)
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    • Structures were modeled within the Maestro [A] modeling environment. Conformational analyses were carried out with BatchMin [B] using the following parameters: 1000 steps/rotatable bond, OPLS-2005 FF, implicit water model of solvation, 10000 minimisation steps with PRCG, relative energy window for the minimized conformers within 3 kcal/mol. On the left hand side of the compounds, H-bond acceptor (A2, A3) and donor (D4) pharmacophore features were mapped using the Phase [C] module within Maestro. [A] Maestro V8.5.111 (Schrodinger LLC). [B] BatchMinV9.6 (Schrodinger LLC). [C] Phase V3.0.110 (Schrodinger LLC)
    • Structures were modeled within the Maestro [A] modeling environment. Conformational analyses were carried out with BatchMin [B] using the following parameters: 1000 steps/rotatable bond, OPLS-2005 FF, implicit water model of solvation, 10000 minimisation steps with PRCG, relative energy window for the minimized conformers within 3 kcal/mol. On the left hand side of the compounds, H-bond acceptor (A2, A3) and donor (D4) pharmacophore features were mapped using the Phase [C] module within Maestro. [A] Maestro V8.5.111 (Schrodinger LLC). [B] BatchMinV9.6 (Schrodinger LLC). [C] Phase V3.0.110 (Schrodinger LLC).
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    • Jones, P.; Pryde, C.; Fran, T.-D. PCT Int. Appl., WO2007093901, 2007.
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    • Jones, P.1    Pryde, C.2    Fran, T.-D.3
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    • The four stereoisomers obtained by reduction of 7 were separated by chiral SFC. Preparative chromatography conditions: [Column: ChiralPak AD-H (25 × 2.1 cm); Modifier: 12% (EtOH + 0.1% isopropylamine) 12%, 15% after third peak; Flow rate 50.0 ml/min; UV detection 220 nM; Loop 500 μl]. Injection of 10 mg in the modifier to give in order to elution: 8a, 9a, 8b, and 9b
    • The four stereoisomers obtained by reduction of 7 were separated by chiral SFC. Preparative chromatography conditions: [Column: ChiralPak AD-H (25 × 2.1 cm); Modifier: 12% (EtOH + 0.1% isopropylamine) 12%, 15% after third peak; Flow rate 50.0 ml/min; UV detection 220 nM; Loop 500 μl]. Injection of 10 mg in the modifier to give in order to elution: 8a, 9a, 8b, and 9b.
  • 23
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    • Preparative chromatographic conditions: Column: ChiralPak AD-H (25 × 0.46 cm); Mobile phase: n-hexane/EtOH 65/35% v/v; Flow rate: 0.8 ml/min. DAD:210-340 nM to give according to the order of elution 15a (anti enantiomer 1) and 15b (anti enantiomer 2)
    • Preparative chromatographic conditions: Column: ChiralPak AD-H (25 × 0.46 cm); Mobile phase: n-hexane/EtOH 65/35% v/v; Flow rate: 0.8 ml/min. DAD:210-340 nM to give according to the order of elution 15a (anti enantiomer 1) and 15b (anti enantiomer 2).
  • 24
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    • Compound 19 was separated using the following chiral HPLC preparative conditions: Column: Chiralpak IC (20 mm × 250mm, 5 μm); Heptane: IPA 70:30 v/v pump-mixed; Flow rate = 17.0 ml/min; UV absorbance 215 nM; Autosampler injection (500 μl of 140.0 mg/ml sample in DCM/MeOH 8:2 on column); isocratic run time = 50.0 min
    • Compound 19 was separated using the following chiral HPLC preparative conditions: Column: Chiralpak IC (20 mm × 250mm, 5 μm); Heptane: IPA 70:30 v/v pump-mixed; Flow rate = 17.0 ml/min; UV absorbance 215 nM; Autosampler injection (500 μl of 140.0 mg/ml sample in DCM/MeOH 8:2 on column); isocratic run time = 50.0 min.
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    • Compounds 21a and 22b were isolated (in order of elution) from the mixture of four diasteroisomers using the following preparative chiral HPLC conditions: Column: Chiralpak IA (20 mm × 250mm, 5 μm); Heptane: Absolute Ethanol 90:10 v/v pump-mixed; Flow rate = 17.0 ml/min; UV Absorbance 215 nM; Autosampler injection (900 μl of 95.0 mg/ml sample in DCM:MeOH 8:2 on column); isocratic run time = 50.0 min. The mixture of 21b and 22a was subsequently separated (in order of elution) according the following chiral HPLC condition: Column: Chiralpak IC (20 mm × 250mm, 5 μm); Heptane: IPA 70:30 v/v pump-mixed; Flow rate = 17.0 ml/min; UV Absorbance 215 nM; Autosampler injection (900 μl of 95.0 mg/ml sample in DCM/MeOH 8:2 on column); isocratic run time = 60.0 min
    • Compounds 21a and 22b were isolated (in order of elution) from the mixture of four diasteroisomers using the following preparative chiral HPLC conditions: Column: Chiralpak IA (20 mm × 250mm, 5 μm); Heptane: Absolute Ethanol 90:10 v/v pump-mixed; Flow rate = 17.0 ml/min; UV Absorbance 215 nM; Autosampler injection (900 μl of 95.0 mg/ml sample in DCM:MeOH 8:2 on column); isocratic run time = 50.0 min. The mixture of 21b and 22a was subsequently separated (in order of elution) according the following chiral HPLC condition: Column: Chiralpak IC (20 mm × 250mm, 5 μm); Heptane: IPA 70:30 v/v pump-mixed; Flow rate = 17.0 ml/min; UV Absorbance 215 nM; Autosampler injection (900 μl of 95.0 mg/ml sample in DCM/MeOH 8:2 on column); isocratic run time = 60.0 min.
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    • i) values from the pIC50 values
    • i) values from the pIC50 values.
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    • Different categories of receptor antagonists have been described. Some antagonists produce parallel rightward shifts of the agonist concentration-response curve, without affecting the maximal response. These are classified as surmountable antagonists (Gaddum, J.H.; Hameed, K.A.; Hathway, D.E.; Stephens, F.F. Q. J. Exp. Physiol. 1955, 40, 49). Insurmountable antagonists are able to depress the maximal response.
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    • Gaddum, J.H.1    Hameed, K.A.2    Hathway, D.E.3    Stephens, F.F.Q.4
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    • max in the presence of two selected test compound concentrations is shown in Tables 2 and 3
    • max in the presence of two selected test compound concentrations is shown in Tables 2 and 3.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.