Process for preparing pharmaceutically active compounds

Details Process for preparing pharmaceutically active compounds Process for preparing pharmaceutically active compounds

2007-02-13

2007-02-13

Habte, Kahsay (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

C544S118000, C544S357000, C546S275400

Reexamination Certificate

active

10753199

ABSTRACT:
A process for the preparation of Compounds of the formula (1):wherein R1, R2, R4and R13are as defined or a pharmaceutically or veterinarily acceptable salt or polymorph thereof, or a pharmaceutically or veterinarily acceptable solvate or pro-drug thereof: are potent and selective inhibitors of type 5 cyclic guanosine 3′,5′-monophosphate phosphodiestbrase (cGMP PDE5) and have utility in the treatment of, inter alia, male erectile dysfunction (MED) and female sexual dysfunction (FSD).

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