Abstract:
PROBLEM TO BE SOLVED: To provide novel compounds and a composition and method for inhibiting retroviral proteases and in particular for inhibiting human immunodeficiency virus (HIV) protease, a composition and method for inhibiting a retroviral infection and in particular an HIV infection, processes for making the compounds and synthetic intermediates employed in the processes.SOLUTION: There are provided a compound of formula (I) as HIV protease inhibitor or its pharmaceutically acceptable salt, ester or prodrug, and intermediates thereof.
Abstract:
PROBLEM TO BE SOLVED: To obtain a new compound having retrovirus protease inhibiting activities, and useful for treatment of disease caused by retrovirus. e.g. Acquired Immune Deficiency Syndrome(AIDS) and human acute cellular leukemia. SOLUTION: This new compound is represented by formula I [R1 and R2 are each a lower alkyl, a cycloalkyl or an arylalkyl; R3 is a lower alkyl, a hydroxyalkyl or the like; R4 is an aryl or the like; R5 is a group of formula II (n is 1-3; X is O, S or the like; Y is CH2 or the like) or the like; L1 is O, S or the like], and exemplified by (2S,3S,5S)-2-(2,6-dimethylphenoxyacetyl) amino-3-hydroxy-5-[2S-(1-tetrahydropyrimid-2-onyl)-3-methylbutanoyl]am ino-1,6- diphenylhexane. The compound of formula I is obtained by reacting a compound of formula III with a compound of formula IV in the presence of a diimide to provide a compound of formula V, deprotecting the N, and reacting the deprotected N with a carboxylic acid.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for preparing quinoline-substituted carbonate and carbamate compounds which are important intermediates in the synthesis of a 6-O-substituted macrolide antibiotic material. SOLUTION: The carbonate or carbamate derivative expressed by the formula: R 1 -CH=CHCH 2 OC(O)-X-R 2 (I) is obtained by coupling a haloquinoline with propargyl alcohol in the presence of a base and a palladium-based catalyst to form an alkynol, reducing it to make an alkenol and then reacting it with an acylation reagent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new compound as an HIV protease inhibiting compound, and to provide a production intermediate thereof. SOLUTION: A compound represented by formula (1) is provided. Wherein, R1 and R2 are independently selected from the group consisting of an alkyl, a cycloalkyl and an arylalkyl; R3 is a lower alkyl, a hydroxyalkyl, or a cycloalkylalkyl; R4 is an aryl or a heterocycle; R5 is a 5-7 membered ring containing nitrogen atom and having a hetero atom directly bonded with the heterocycle; and L1 is a bivalent bonding group such as -O- or -S-. COPYRIGHT: (C)2008,JPO&INPIT