摘要:
This invention discloses a novel method for the conversion of carboxylic acids to carbothioic acids and application of the method to the preparation of androstane carbothiolates, such as fluticasone propionate, which avoids column chromatography.
摘要:
The process of the present invention relates to a process for producing 1 3-cis retinoic acid. The process of the present invention involves reacting a Wittig salt in a solvent with a butenolide in the presence of a weak base and a Lewis acid.
摘要:
Intermediates of the formula QUIN: and methods for their preparation are described. The intermediate compounds are useful for preparing active agents for the treatment of hepatitis C virus (HCV) infection.
摘要:
Disclosed is a process for preparing a macrocyclic compound of the formula (I) wherein a hydroxyl-substituted macrocyclic compound of formula (3) is reacted with a sulfonyl-substituted compound of formula QUIN: The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
摘要:
Disclosed is a process for preparing a macrocyclic compound of the formula (I) wherein a hydroxyl-substituted macrocyclic compound of formula (3) is reacted with a sulfonyl-substituted compound of formula QUIN: The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
摘要:
Disclosed is a process for preparing a macrocyclic compound of the formula (I) wherein a hydroxyl-substituted macrocyclic compound of formula (3) is reacted with a sulfonyl-substituted compound of formula QUIN: The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.