Disclosed is crystal form I of compound (S)—N-[5-[1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-4,6-dioxo-5,6-dihydro-4H-thieno[3,4-c]pyrrole-1-yl]acetamide.
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(2021/05/14)
IMPROVED PROCESS FOR THE PREPARATION OF APREMILAST
The present invention relates to an improved process for the preparation of Apremilast of formula (I).
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Page/Page column 15; 16
(2017/11/16)
THIOPHENE DERIVATIVES
Disclosed is a compound of formula (1), wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the present application.
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(2012/04/17)
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