Novel process for producing bischoline-disulfonate derivatives
 The process for producing bischoline-disulfonate derivatives of Formula (I) ##STR1## useful for enhancing the digestive function comprising reacting, in the presence of an organic solvent, a trimethylammonium salt derivative of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are individually lower alkyl and X is a group removable by a disulfonic acid of Formula (III) EQU R(SO.sub.3 H).sub.2 (III) wherein R is a naphthylene, or an organic base salt of said acid. 
Toyama Chemical Co., Ltd.
A C
A61P C07C
inventional inventional
Takako Mariko Noboru Yasuyuki Mikio Akiko Isamu
Wakamiya Hayashi Takagawa Suzuki Kawabata Takagi Saikawa