Syntheses of chiral intermediates of 1-β-methylcarbapenems: (3S,4R)-3-[1(R)-tert-butyldimethylsilyloxyethyl]-4-chloroazetidin-2-one and yldimethylsilyloxyethyl]-4-[1(R)-tert-butylthiocarbonylethyl]azetidin-2-one

R&D Labs maybe for 113033-46-8

• Huayang chemical Co., LTD

  Contact:+86-18653358619

  Address:zibo

• Qingdao Pana-Life Biochem Co.,Ltd.

  Contact:86-532-87683902

  Address:No.967 Dalao Road, Licang Zone, Qingdao City,Shandong, China 266021

• CHENGDU CHENLV HERB CO.,LTD

  Contact:+86-28-88523492

  Address:714rooms of Time Square, Pujiang County

• Sinoway Industrial Co., Ltd.

  website:http://www.china-sinoway.com

  Contact:+86-592-5853819

  Address:16/F,Huicheng Comm,Complex,No839 XiaHe Rd, Xiamen,China

• Jiaxing Carry Bio-Chem Technology Co.,Ltd

  website:http://www.carrybiotech.com

  Contact:0573-82788958

  Address:Add.Fl 3th, Pharm Vally,Kaichuang Rd, Xiuzhou District, Jiaxing, Zhejiang,314031,China