A Bucktown man with a long, violent criminal record robbed a woman in Uptown and tried to disarm a police officer who intervened, prosecutors said Friday.

Murphy | Cook County Sheriff’s Office

Darnell Murphy, 52, is charged with armed robbery, disarming a police officer, unlawful restraint, and two counts of resisting a police officer.

Prosecutors said 19th District officers saw the robbery unfold in the 4700 block of North Broadway early Thursday morning and immediately went to assist the 22-year-old victim.

Murphy attempted to disarm one of the approaching officers and then fled the scene.

The officers chased Murphy into an alley where they discharged pepper spray to subdue him. Two cops suffered injuries during the arrest, police said.

Other officers recovered a knife that Murphy used in the robbery, prosecutors said. A phone that he had in his hand at the time of his arrest belonged to the victim, police said.

State records show that Murphy was released from prison in April after serving just four years of an eight-year sentence for burglary.

His previous prison sentences include 33 years for murder-intent to kill in 1989; four years for burglary in 1989; ten years for armed robbery in 1989; six years for burglary in 1986; and a pair of four-year sentences for burglaries in 1982.

A judge Thursday ordered him held without bail.

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