Novel method for preparing Prostaglandin derivatives
Provided is a novel method for preparing prostaglandin derivatives. The method is suitable for mass production by effectively manufacturing prostaglandin derivatives with high yield. The method comprises the following steps: (S-1) adding a first reducing agent to a prostaglandin intermediate compound represented by chemical formula II and manufacturing a compound represented by chemical formula III; (S-2) manufacturing a compound represented by chemical formula IV from the compound represented by chemical formula III in the presence of a base; (S-3) adding a second reducing agent to the compound represented by chemical formula IV and manufacturing a compound represented by chemical formula V; and (S-4) performing Wittig reaction of the compound represented by chemical formula V and a compound represented by chemical formula VI, and manufacturing a compound represented by chemical formula I.COPYRIGHT KIPO 2017
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Paragraph 0093; 0104-0106
(2017/10/31)
Identification of very long chain unsaturated fatty acids from Ximenia oil by atmospheric pressure chemical ionization liquid chromatography-mass spectroscopy
A method is described for the enrichment of very long chain unsaturated fatty acids from total fatty acids of Ximenia oil and their identification as picolinyl esters by means of liquid chromatography-mass spectrometry with atmospheric pressure chemical ionization (LC-MS/APCI). The method is based on the use of preparative reversed phase HPLC and their subsequent identification by microbore LC-MS/APCI. The combination of these two techniques was used to identify unusual unsaturated VLCFAs up to tetracontenoic acid. All four positional isomers of tetratriacontenoic acid were also synthesized to unambiguously confirm their structure.
Rezanka, Tomas,Sigler, Karel
p. 925 - 934
(2008/03/14)
Pheromones, XXXII. - Synthons for the preparation of bisolefinic lepidoptera pheromones
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Bestmann,Koschatzky,Schaetzke,et al.
p. 1705 - 1720
(2007/10/02)
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