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Crystal and molecular structures of 1-(2-ethyloxycarbonylo propan-2-ylamino)-3-(1-napthyloxy) propan-2-ol-hydrochloride (1) (C19H26NO4Cl) and 1-(2-isopropyloxycarbonylo-propan-2-ylamino)-3-(1-napthyloxy) propan-2-ol hydrochloride (2) (C20H28N04Cl)
Authors:G. D. Bujacz  M. W. Wieczorek  E. Galas  J. Zjawiony  A. Wojciechowska
Affiliation:(1) Institute of Technical Biochemistry, Technical University of "Lstrok"ód"zacute", Stefanowskiego4/10, 90-924 "Lstrok"ód"zacute", Poland;(2) Institute of Organic Chemistry, Technical University of "Lstrok"ód"zacute", Poland
Abstract:The crystal structures of two newbeta-adrenergic antagonists, derivatives of propranolol, are shown in this paper. The space groups and unit-cell parameters are: compound1 (C19H26NO4Cl): triclinic, space groupP1,a=6.420(1),b=10.161(1),c=15.823(1) Å,agr=82.47(1),beta=84.16(1), gamma=77.55(1)°; compound 2 (C20H28NO4Cl): monoclinic, space groupP21/c,a=6.460(1),b=33.285(2),c=10.120(1) Å,beta=104.83(1)°. The structures were solved by direct methods and refined with full-matrix least-squares techniques toR indices of 0.055 and 0.048, respectively. The –CH(OH)-CH2-NH-sections of the side chains show the conformation approximate togauche.
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