Keywords: Amino acid; Aminoalkanesulfonic acid; Homotaurine; Homologation; Synthesis; BBFRZHWCVFSFQZ-UHFFFAOYSA-N; NEXAVCUTZADVEU-KRWDZBQOSA-N; NEXAVCUTZADVEU-UHFFFAOYSA-N; NXDHEHGNNDPBNL-UHFFFAOYSA-N; BBFRZHWCVFSFQZ-AWEZNQCLSA-N; WUIQVOMIYLNNEC-UHFFFAOYSA-N;