“…Regarding fluorescent derivatives of cholesterol and phospholipids, two major types can be differentiated: (i) 7-nitro-2,1,3-benzooxadiazole (NBD) derivatives 201 , 251 , 252 , 254 , 256 , 258 , 261 , 308 , 335 , 342 , 360 , 379 , 389 , 390 , 392 , 394 , 397 , 402 , 406 , 408 , 468 and (ii) 4,4-difluoro-4-bora-3a,4a-diaza- s -indacene (BODIPY) derivatives. 271 , 282 , 319 , 321 , 330 , 332 , 455 , 456 , 515 - 517 Other fluorophore-labeled dyes have been reported, too, including the sterane analog dansylestramustine, 171 , 238 , 518 and propargyl choline, which is processed in vitro into propargylated phospholipids.…”