One Step Synthesis of 5-Acylamino-2,2-dialkyl-4-oxo-1,3-dioxanes: A Cyclic System Enabling Simultaneous Protection of Hydroxyl and Carboxyl Functions in α-Hydroxymethyl-α-Amino Acids
CRYSTAL OF CYCLIC PHOSPHONIC ACID SODIUM SALT AND METHOD FOR MANUFACTURING SAME
申请人:OTSUKA CHEMICAL CO., LTD.
公开号:US20170233421A1
公开(公告)日:2017-08-17
An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal. The present invention provides a crystal of a cyclic phosphonic acid sodium salt (2ccPA) represented by formula (1):
Crystal of cyclic phosphonic acid sodium salt and method for manufacturing same
申请人:OTSUKA CHEMICAL CO., LTD.
公开号:US10385081B2
公开(公告)日:2019-08-20
An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal. The present invention provides a crystal of a cyclic phosphonic acid sodium salt (2ccPA) represented by formula (1):