Crystalstructures,absoluteconfigurationsandmoleculardockingstudiesofnaftopidilenantiomersasα1D-adrenoceptorantagonists
ActaPharmaceuticaSinicaB
頁(yè)數(shù): 6 2017-07-25
摘要: Chiraldrugnaftopidil(NAF),aspecificα1D-adrenoceptor(AR)antagonistforthetreatmentofbenignprostatichyperplasia,wasusedinracemicformforseveraldecades.OurrecentworkdeclaredthatNAFenantiomersshowedthesameantagonisticeffectsontheα1D-AR,butthebindingmechanismofthesetwostereochemicalNAFisomerstotheα1Dreceptorremainedunclear.Herein,wereportedthecrystallographicstructuresofopticallypureNAFstereoisomersforthefirsttimeandunambiguouslydeterminedtheirabsoluteconfigurations.ThecrystaldataofRandSenantiomersmatchedsatisfactorilythepharmacophoremodelforα1D-selectiveantagonists.Basedontheconstructedα1Dhomologymodel,moleculardockingstudiesshedlightonthemolecularmechanismofNAFenantiomersbindingtoα1D-AR.TheresultsindicatedthatNAFenantiomersexhibitedtheverysimilarbindingposesandoccupiedthesamebindingpocket. (共6頁(yè))