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Patent / Jan 01, 1976

16.beta.-Methyl-17-hydroxypregna-1,4,9(11)-triene-3,20-dione

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Source:

GB 1397267

The title compd. I was prepd. from pregnanetrione II. Thus, ketalization of II using HOCH2CH2OH followed by redn. using KBH4 and then dehydration gave pregnene III. The Grignard reaction of III and MeMgBr followed by acid hydrolysis and bromination-dehydrobromination gave I.

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Knowledge Center

16.beta.-Methyl-17-hydroxypregna-1,4,9(11)-triene-3,20-dione

Also in the Knowledge Center

Bioanalytical Method Development and Validation for the Estimation of Metformin and Vildagliptin in K3EDTA Human Plasma Using HPLCESI- MS/MS

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A review of the state-of-the-art: progress in ultrasonic and acoustic techniques for quality assessment in the development and manufacturing of oral solid dosage forms - Part I: theoretical foundations and principles

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