二环己胺   、                                                                                      
N-(2-carboxymethyl-2,5,7,8-tetramethylchroman-6-sulfonyl)benzamidine   、                                                                                      
异丙醚                                                                                                                                                                                              以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以to give N-(2-carboxymethyl-2,5,7,8-tetramethylchroman-6-sulfonyl)benzamidine dicyclohexylamine salt as a solid (1.59 g)的产率得到N-(2-carboxymethyl-2,5,7,8-tetramethylchroman-6-sulfonyl)benzamidine dicyclohexylamine salt