Modified steroid hormones. XLI. Rearrangement of 3 beta-acetoxy-4a alpha-hydroxy-5 beta-methyl-A-homo-B-nor steroids into normal steroids of the 6-methylene-5 beta-H series.

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• Hebei Maison Chemical Co.,Ltd

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

  Contact:0086-311-83833777

  Address:Leitou industrial district, xinji, shijiazhuang city, hebei province,

• ClickChem Technology Co., Limited

  Contact:+86-0310-6519966/0531-52893837

  Address:No.750 Shunhua Road, High-Tech Zone, Jinan city, Shandong China

• Angelisun(Chongqing) Pharmaceutical Co., LTD.

  Contact:+86-23-68030926-816

  Address:D1-7 Tech & Entrepreneurs Park, Kecheng Road, Erlang Hi-Tech Areas, Chongqing, China

• Changzhou Sunlight Pharmaceutical Co., Ltd.

  Contact:+86-519-83131668;83139028;83138042;83137041

  Address:JiuliStreet, Benniu Town Changzhou City, Jiangsu Province

• Hangzhou Share Chemical Co., Ltd(expird)

  Contact:+86-57187093700

  Address:Hang Xing Road