Process for preparing an intermediate for avibactam
申请人:XINFA PHARMACEUTICAL CO., LTD
公开号:US10570132B2
公开(公告)日:2020-02-25
A method for preparing an intermediate for avibactam, and specifically relates to a method for preparing ([(2S,5R)-2-carbamoyl-7-oxo-1,6-diazabicyclo[3.2.1]oct-6-yl]oxy}sulfonyl)tetrabutylammonium salt (II). With 5R-[(benzyloxy) amino] piperidine-2S-carboxylate oxalate (III) as the raw material is reacted with the amide of Formula IV via amidation to prepare the compound of Formula V; the resulting compound of Formula V is reacted with the carbonylation reagent via urea cyclization to obtain the compound of Formula VI; the benzyl or the substituted benzyl in the compound of Formula VI is removed by catalytic hydrogeneration, then the resulting compound is sulfatated by sulfur trioxide complex and is salinized into tetrabutylammonium to obtain the final product (II).
一种制备阿维巴坦中间体的方法,具体涉及一种制备([(2S,5R)-2-氨基甲酰基-7-氧代-1,6-二氮杂双环[3.2.1]辛-6-基]氧基}磺酰基)四丁基铵盐(II)的方法。以 5R-[(苄氧基)氨基]哌啶-2S-羧酸草酸盐(III)为原料,通过酰胺化反应与式 IV 的酰胺反应,制备式 V 的化合物;得到的式 V 的化合物通过脲环化反应与羰基化试剂反应,得到式 VI 的化合物;通过催化加氢脱除式 VI 化合物中的苄基或取代的苄基,然后用三氧化硫络合物对所得化合物进行硫 酸化,并盐析成四丁基铵,得到最终产物 (II)。
PROCESS FOR PREPARING AN INTERMEDIATE FOR AVIBACTAM
申请人:XINFA PHARMACEUTICAL CO., LTD
公开号:US20190263812A1
公开(公告)日:2019-08-29
A method for preparing an intermediate for avibactam, and specifically relates to a method for preparing ([(2S,5R)-2-carbamoyl-7-oxo-1,6-diazabicyclo[3.2.1]oct-6-yl]oxy}sulfonyl)tetrabutylammonium salt (II). With 5R-[(benzyloxy) amino] piperidine-2S-carboxylate oxalate (III) as the raw material is reacted with the amide of Formula IV via amidation to prepare the compound of Formula V; the resulting compound of Formula V is reacted with the carbonylation reagent via urea cyclization to obtain the compound of Formula VI; the benzyl or the substituted benzyl in the compound of Formula VI is removed by catalytic hydrogeneration, then the resulting compound is sulfatated by sulfur trioxide complex and is salinized into tetrabutylammonium to obtain the final product (II).