An efficient synthesis of (3R,4R)-3-(1(R)-hydroxyethyl)-4-(benzoyloxy)-2-azetidinone from L-threonine. Use of phenylalkoxymethyl as a novel N-protecting group

R&D Labs maybe for 112113-93-6

• HANGZHOU FOREWIN PHARMA CO., LTD

  Contact:+86-571-89053961

  Address:hangzhou

• Hangzhou Neway Chemicals Co., Ltd.

  Contact:+86-571-85095566

  Address:Room 803, Qinglian Bldg, No 139 Qingchun Road, Hangzhou, Zhejiang China

• Rely Chemicals Ltd.

  Contact:+86-518-81061113

  Address:No. 8 Lingzhou Road, Lianyungang, Jiangsu, China

• Hunan Haili Chemical Industry Co.,Ltd.

  Contact:+86-731-85521860

  Address:No.251, 2nd Section, Furong Road, Changsha,Hunan,China

• SuZhou Hua-Emy Chemical Import and Export Co., LTD.

  Contact:+86-512-88804994; +86-512-88804550;

  Address:710, Building B, International Trade Center, 12 Huanghelu, Changshu, Jiangsu,China