1 8QP [(1s)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-B]indol-1-yl]acetic acid 1.000 2 8QS [(1r)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-B]indol-1-yl]acetic acid 1.000 3 1JE [(1r)-5,8-dichloro-1-propyl-1,3,4,9-tetrahydropyrano[3,4-B]indol-1-yl]acetic acid 0.792