METHOD FOR PRODUCING CYCLIC SULFONIC ACID ESTER AND INTERMEDIATE THEREOF
申请人:Kuramoto Ayako
公开号:US20120130089A1
公开(公告)日:2012-05-24
The present invention is directed to provide an efficient production method which is capable of not only obtaining a cyclic sulfonic acid ester (sultone) at low cost and in high yield, but also the sulfonic acid ester (sultone) stably even in a commercial scale. The present invention relates to a method for producing hydroxysultone comprising a first step where a diol having a specified structure and a thionyl halide are reacted to obtain a cyclic sulfite having a specified structure, and a second step where the cyclic sulfite is reacted with water or/and alcohol; a method for producing an unsaturated sultone having a specified structure comprising a third step where a hydroxylsultone having a specified structure is reacted with an acid halide or an acid anhydride to obtain an intermediate, subsequently the intermediate is treated with a base; as well as a cyclic sulfite having a specified structure.
CRYSTALLIZATION OF SMAC MIMIC USED AS IAP INHIBITOR AND PREPARATION METHOD THEREOF
申请人:CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
公开号:US20220177453A1
公开(公告)日:2022-06-09
Provided are a crystallization of an SMAC mimic used as an IAP inhibitor and a preparation method thereof; also comprised is the use of said crystallization in the preparation of a drug for treating cancer benefiting from cIAP1 inhibition. The compound of formula (I) has high crystallization stability and low hygroscopicity, and has advantages in terms of physical properties, safety, and metabolic stability, and has high drug value.
1,3-propanesultone derivative useful in the preparation of a 1,3-propenesultone derivative
申请人:Wako Pure Chemical Industries, Ltd.
公开号:EP2757102A1
公开(公告)日:2014-07-23
The present invention is directed to provide an efficient production method which is capable of not only obtaining a cyclic sulfonic acid ester (sultone) at low cost and in high yield, but also the sulfonic acid ester (sultone) stably even in a commercial scale. The present invention relates to a method for producing hydroxysultone comprising a first step where a diol having a specified structure and a thionyl halide are reacted to obtain a cyclic sulfite having a specified structure, and a second step where the cyclic sulfite is reacted with water or/and alcohol; a method for producing an unsaturated sultone having a specified structure comprising a third step where a hydroxylsultone having a specified structure is reacted with an acid halide or an acid anhydride to obtain an intermediate, subsequently the intermediate is treated with a base; as well as a cyclic sulfite having a specified structure.
Aryl substituted pyrimidines for use in influenza virus infection
申请人:Janssen Sciences Ireland UC
公开号:US10611755B2
公开(公告)日:2020-04-07
The invention relates to compounds having the structure of formula (I) which can be used for the treatment of or against influenza infections.
本发明涉及具有式(I)结构的化合物,可用于治疗或预防流感感染。
Oligonucleotide analogues having modified intersubunit linkages and/or terminal groups
申请人:Sarepta Therapeutics, Inc.
公开号:US10760078B2
公开(公告)日:2020-09-01
Oligonucleotide analogues comprising modified intersubunit linkages and/or modified 3′ and/or 5′-end groups are provided. The disclosed compounds are useful for the treatment of diseases where inhibition of protein expression or correction of aberrant mRNA splice products produces beneficial therapeutic effects.