Lenacapavir Impurity 12

N- ((S) -1- (3- (4-chloro-3- (N-ethylmethylsulfonamido) -1- (2,2,2-trifluoroethyl) -1H-indazol-7-yl) -6- (3-methyl-3- (methylsulfonyl) but-1-yn-1-yl) pyridin-2-yl) -2- (3,5-difluorophenyl) ethyl) -2- ((3bS,4aR) -5,5-difluoro-3- (trifluoromethyl) -3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-1-yl) acetamide