4-chloro-2-(methylthio)-7-alpha-ribofuranosyl-7H-pyrrolo[2,3-d]pyrimidine 7H-pyrrolo[2,3-d]pyrimidine, 4-chloro-2-(methylthio)-7-beta-D-ribofuranosyl- InChI=1/C12H14ClN3O4S/c1-21-12-14-9(13)5-2-3-16(10(5)15-12)11-8(19)7(18)6(4-17)20-11/h2-3,6-8,11,17-19H,4H2,1H3/t6-,7-,8-,11-/m1/s