2H-pyrido[1,2-a]pyrimidine-7,8,9-triol, octahydro-, (7S,8S,9S,9aR)- InChI=1/C8H16N2O3/c11-5-4-10-3-1-2-9-8(10)7(13)6(5)12/h5-9,11-13H,1-4H2/t5-,6-,7+,8+/m0/s rel-(7R,8R,9R,9aS)-octahydro-2H-pyrido[1,2-a]pyrimidine-7,8,9-triol