The invention refers to the selective agent of the target, in which at least one encrypted derivative of formula (I) is attached together,R1 represents halogen atom, R2 represents an acid group Oh derived from AA amino acid or alkyl group (C1-C4)；Or R1 and R2 together constitute an epoxy agent； AA represents a natural or unnatural amino acid； R3 represents a group of asphalt (C1-C6)；R4 and R5 represent two h, or form a double layer ch = ch between C13 and C14； R6 and R7 represent an H or a tar group (C1-C6), respectively；R8 and R9 represent an H or an asphalt group (C1-C6), respectively；R10 represents an alternative to at least one phenyl core selected from group H: OH group, alcoxi (C1-C4),a. A halogen atom or a group of - NH2, nhequilo (C1-C6) or n (tar (C1-C6)) 2； R11 represents at least an alternative to the phenyl nucleus selected from H or tar (C1-C4)；The target selection agent and the cipher derivative are covalently bound, and the binding is in an orthogonal state (or),3. The specific (m) or (P) of the phenyl nucleus of CR1 motive carrier.La invención se refiere a un agente de selección de la diana al que está unido al menos un derivado de criptoficina de la fórmula (I), en la que: R1 representa un átomo de halógeno y R2 representa un grupo -OH, un grupo acilo derivado de un aminoácido AA o un grupo alcanoiloxi(C1-C4)； o bien R1 y R2 forman conjuntamente un motivo epóxido； AA indica un aminoácido natural o no natural； R3 representa un grupo alquilo(C1-C6)； R4 y R5 representan los dos H o forman conjuntamente un doble enlace CH=CH entre C13 y C14； R6 y R7 representan independientemente uno de otro H o un grupo alquilo(C1-C6)； R8 y R9 representan independientemente uno de otro H o un grupo alquilo(C1-C6)； R10 representa al menos un sustituyente del núcleo fenilo elegido entre: H, un grupo OH, alcoxi(C1-C4), un átomo de halógeno o bien un grupo -NH2, -NHalquilo(C1-C6) o N(alquilo(C1-C6))2； R11 representa al menos un sustituyente del núcleo fenilo elegido entre
