A convenient synthesis of 5-cyano-6-dialkylamino-2-hydroxy-3-methoxycarbonyl-2-methyl-4-(2- or 4-nitrophenyl)-1,2,3,4-tetrahydropyridines and their dehydration to 5-cyano-6-dialkylamino-3-methoxycarbonyl-2-methyl-4-(2- or 4-nitrophenyl)-1,4-dihydropyridin

R&D Labs maybe for 126126-79-2

• Tradlon Chemical Co., Ltd.

  Contact:+86-710-3516804

  Address:Number 83,Panggong road,Xiangcheng District,Xiangyang ,Hubei

• Hangzhou Maytime Bio-Tech Co.,Ltd.

  website:http://www.maytime.com.cn

  Contact:+86-571-88925295 88920965

  Address:NO.2-1701 Ganghui Central Ningwei Street, Xiaoshan Hangzhou Zhejiang China

• Hebei Tete Trade Co., Ltd.

  Contact:86-311-83160559

  Address:shijiazhuang

• Xi'an caijing Opto-Electrical Science & Technology Co., LTD

  Contact:+86-29-88294447

  Address:NO.168 Zhangba Rd. East, Xi'an, P.R.China

• Xinjiang Fufeng Biotechnologies Co., Ltd.

  Contact:+86-539-7287111

  Address:GANQUANPU INDUSTRIAL PARK, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT AREA (TOUTUNHE DISTRICT) OF URUMQI