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KMID : 0043319910140010001
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Archives of Pharmacal Research
1991 Volume.14 No. 1 p.1 ~ p.6
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The Crystal Structure of Licarin-B (C20H20O4, A Component of the Seeds of Myristica fragrans
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Kim YB
Park IY/Shin KH
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Abstract
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The crystal structure of licarin-B, a component of Myristicae Semen was determined by single crystal X-ray diffraction analysis. Crystal of the compound, which was recrystallized from the mixture of hexane and ether, is monoclinic with a=12.740(1), b=7.219(1), c=9.284(1) Angstroem, beta=94.75(1)o, Dx=1.26, Dm=1.27g/cm3, space group P21, and Z=2. The structure was solved by direct method and refined by least-squares procedure to the final R value of 0.040 for 1532 independent reflections {F > or = 3sigma(F)}. The compound is a dimeric phenylpropanoid, and belongs to the neolignan analogues. The molecules are arranged along with the screw axis. The intermolecular contacts appear to be the normal van der Waals’’ forces.
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