(1R,5S,Z)-4-(2,2,2-trifluoro-1-hydroxyethylidene)spiro[bicyclo[3.1.0]hexane-2,2'-[1,3]dithiolan]-3-one compound with diisopropylamine (1:1),(1R,5S,Z)-4-(2,2,2-trifluoro-1-hydroxyethylidene)spiro[bicyclo[3.1.0]hexane-2,2'-[1,3]dithiolan]-3-one compound with diisopropylamine (1:1),Lenacapavir Impurity