The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the first author published the paper without other authors’ consent and approval. Th...The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the first author published the paper without other authors’ consent and approval. The scientific community takes a very strong view on this matter, and the OJOG treats such behavior seriously. This paper published in Vol. 3 No. 1, 105-110 (pages), 2013, has been removed from this site.展开更多
The increasing medicinal importance of 19-norsteroids, particularly for oral contraceptives, has stimulated intensive research to continuously find more economic methods of either partial and total direct synthesis or...The increasing medicinal importance of 19-norsteroids, particularly for oral contraceptives, has stimulated intensive research to continuously find more economic methods of either partial and total direct synthesis or indirect synthesis via estrone of this class of compound.展开更多
文摘The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the first author published the paper without other authors’ consent and approval. The scientific community takes a very strong view on this matter, and the OJOG treats such behavior seriously. This paper published in Vol. 3 No. 1, 105-110 (pages), 2013, has been removed from this site.
文摘The increasing medicinal importance of 19-norsteroids, particularly for oral contraceptives, has stimulated intensive research to continuously find more economic methods of either partial and total direct synthesis or indirect synthesis via estrone of this class of compound.
