Leukeran vs alkylating agent

Leukeran and alkylating agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Leukeran	Yes	No	No	No
alkylating agent	Yes	No	No	No

As nouns, alkylating agent is a hypernym of Leukeran; that is, alkylating agent is a word with a broader meaning than Leukeran:

Leukeran: an alkylating agent (trade name Leukeran) used to treat some kinds of cancer
alkylating agent: an antineoplastic drug used to treat some forms of cancer by attaching an alkyl group to DNA

Leukeran (noun)	alkylating agent (noun)
an alkylating agent (trade name Leukeran) used to treat some kinds of cancer	an antineoplastic drug used to treat some forms of cancer by attaching an alkyl group to DNA