ISSN:
1572-8854
Schlagwort(e):
Pindolol
;
beta blockers
;
amide
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
Abstract The crystal and molecular structure of pindolol, 1-(1H indol-4-yloxy)-3-[(1-methylethyl)amino]-2-propanol, has been determined by direct methods. Crystals are tetragonal, $$P\bar 42_1 c$$ ,a=b=15.809(4),c=11.246(2) Å,Z=8,D c=1.174 mg m−3. The finalR-factor for 2271 reflections withI〉2σ(I) is 0.038. Refinement by full-matrix least-squares on F2 also enabled the absolute configuration of the structure to be established. The molecule is essentially planar, including much of the side-chain which is stabilized by the existence of two intramolecular H-bonds, between the ethyl oxygen and OH group, and between the OH and side-chain amide groups, respectively. The crystal structure is formed by three intermolecular hydrogen bonds including two side-chain-side-chain interactions, between ethyl oxygen to amide and OH to amide, and an interaction between the side-chain OH to indole NH.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01666106
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