Synthesis of Some 2-Amino-4-carboxy-3,4-dihydro-2H-1-benzopyran-lactams from 4-Hydroxy-5-oxo-4,5-dihydropyrrole Derivatives

R&D Labs maybe for 78864-33-2

• Shanghai Hongbang Medical Technology CO.,. Ltd

  Contact:13671516988 /18917636693

  Address:Room1, No67 Building, Yongde Road369, Wujing Town, Minhang Districy, Shanghai CIty, China.

• Lalpharm Co., Ltd.,

  Contact:+8613581984929

  Address:Beijing

• Chongqing maohuan Chemicals Co., Ltd

  website:http://www.bschem.com

  Contact:+86 13996103726

  Address:Chongqing Nan'an District Tu Town

• ShenZhen InnoSyn Biotech Co.,Ltd

  website:http://www.innosyns.com

  Contact:+86-755-28351685

  Address:Floor 5 & 6, Building A1, HAIKEXING Strategic Innovative Industrial Park, 16 BaoShan Road, PingShan District

• Nantong Shengfeng Chemical Co., Ltd.

  Contact:13584619938

  Address:Nantong