What is "arabinopyranosyl-n-methyl-n-nitrosourea"

Arabinopyranosyl-N-methyl-N-nitrosourea, also known as Aranose, Aranoza - a cytostatic anticancer chemotherapeutic drug of an alkylating type. Chemically it is a nitrosourea derivative. It was developed in Soviet Union in the 1970s. It was claimed by its developers that its advantages over other nitrosoureas are a relatively low hematological toxicity (compared to other nitrosoureas available at that time) and a wider therapeutic index, which allows for its outpatient administration.