专利号:EP-2918579-A1 优先权日:2014-03-14 标题 :Synthesis of 2-arylmethyl-5-aryl-thiophene 权利人:LEK PHARMACEUTICALS 摘要:The present invention provides a new synthetic process for the production of 2-arylmethyl-5-aryl-thiophene, an intermediate in the synthesis of C-aryl glycosides.
专利号:US-2017247359-A1 优先权日:2014-09-05 标题 :Process for the preparation of canagliflozin 发明人:VELLANKI SIVA RAM PRASAD; BALUSU RAJA BABU; PILLI RAMAKRISHNA; JAWAJI RAJESWARA ROA; ANNADASU ANKAMA NAYUDU 权利人:MYLAN LABORATORIES LTD 摘要:A process for the preparation of canagliflozin. The process may be effectively implemented on an industrial scale. Several compounds useful as intermediates for the synthesis of canagliflozin (Formula 4, Formula 4a, Formula 4b and Formula 5) are also disclosed. The process involves the reduction of the compound of formula 3 in the presence of a metal hydride and an organic solvent to obtain the compound of formula 4, converting this into a compound of formula 5 which in turn is converted into canagliflozin.