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Patent / Jan 01, 2012
Method for the production of fluoromethyl - esters of androstan- 17 - beta - carboxylic acids
Source:
WO 2012160338
The present invention relates to a method of prepg. an org. biol. active compd. of formula (I), wherein R1, R2, R3, R4,. X1, X2 and X3 are as defined in the specification, to certain novel intermediates obtainable from such a method and their use.
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