Patent ID: 8097748
Filing Date: 2012-01-17
Classification: C07F

Abstract:
1. A method of producing an amorphous compound, comprising a first step in which a crystalline substance having a melting point of 70 to 220° C. consisting of a compound of formula (1): (wherein, R 1 , R 2 , R 4 and R 5 represent each independently a hydrogen atom, alkyl group having 1 to 8 carbon atoms, cycloalkyl group having 5 to 8 carbon atoms, alkylcycloalkyl group having 6 to 12 carbon atoms, aralkyl group having 7 to 12 carbon atoms or phenyl group, R 3 each independently represents a hydrogen atom or alkyl group having 1 to 8 carbon atoms, X represents a single bond, sulfur atom or —CH(R 6 )— group (here, R 6 represents a hydrogen atom, alkyl group having 1 to 8 carbon atoms or cycloalkyl group having 5 to 8 carbon atoms), A represents an alkylene group having 2 to 8 carbon atoms or *—COR 7 — group (R 7 represents a single bond or alkylene group having 1 to 8 carbon atoms, and * represents bonding to the oxygen side), either one of Y and Z represents a hydroxyl group, alkoxy group having 1 to 8 carbon atoms or aralkyloxy group having 7 to 12 carbon atoms, and another one represents a hydrogen atom or alkyl group having 1 to 8 carbon atoms); is melted by heating at a temperature of not lower than the melting point, and a second step in which the melted substance obtained in the first step is cooled and solidified.