Men (hoi anthrōpoi). Generic use of the article (men as a class).
Shall not find it (ou mē heurēsousin auton). Strong double negative ou mē with the future active indicative according to Aleph Q, but heurōsin (second aorist active subjunctive) according to A P (either construction regular). The idea here is found in Job 3:21; Jer 8:3. “Such a death as they desire, a death which will end their sufferings, is impossible; physical death is no remedy for the basanismos of an evil conscience” (Swete).
They shall desire to die (epithumēsousin apothanein). Future active of epithumeō, a climax to zētēsousin (they shall seek), to desire vehemently. Paul in Phi 1:23 shows a preference for death if his work is done, in order to be with Christ, a very different feeling from what we have here.
Fleeth (pheugei). Vivid futuristic present active indicative of pheugō. Even death does not come to their relief.