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AssigneeSun Pharma Advanced Research Company Ltd.
InventorsJiten Ranchhodbhai Patel, Gopalkumar Chimanlal Patel, Gaurav Sanjivkumar Sheth, Trinadha Rao Chitturi, Rajamannar Thennati
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The present invention relates to compounds of formula I or salts thereof, wherein, R1 is selected from the group consisting of hydrogen and R4; R2 is selected from the group consisting of hydrogen, acetyl and R4; R3 is selected from the group consisting of alkyl, —O-alkyl, —NH-alkyl, aryl and heterocyclyl; R4 represents a moiety (A) wherein, X is selected from the group consisting of a single bond, alkylene, alkenylene, alkynylene, arylene or a heterocyclylene moiety; R5 and R6 are same or different and are independently selected from hydrogen, alkyl, aryl or heterocyclyl; or R5 and R6 may form together with the nitrogen atom to which they are attached a heterocyclyl ring system.
Compounds of formula I or salts thereof,
A process for preparation of the compounds of the formula I, comprising, reacting the compound of formula II with a compound of formula III wherein R1, R2, R3, R4, R5, R6 and X are as defined for formula I and Y is a leaving group,
A process for preparation of the compounds of the formula I, comprising, reacting the compound of formula IV with a compound of formula V wherein R1, R2, R3, R4, R5, R6 and X are as defined for formula I and Y is a leaving group
Dependencies are inferred from the claim text.