Pramipexole dihydrochloride monohydrate191217-81-9100 % similar 4,5,6,7-Tetrahydro-2,6-benzothiazolediamine104617-49-445 % similar (6S)-4,5,6,7-Tetrahydro-2,6-benzothiazolediamine106092-09-545 % similar N-[(6S)-2-Amino-4,5,6,7-tetrahydro-6-benzothiazolyl]propanamide106006-84-241 % similar 4,5,6,7-Tetrahydro-2-benzothiazolamine2933-29-139 % similar Domin36085-73-134 % similar