Error with a SQL query 'between .. and .. and'

This SQL query works in 7.1.3, but not in 7.2, how come?

select count(*) from log where starttime between now()-interval(60*60) and now() and statuscode='2';
ERROR: parser: parse error at or near "*"

If I precalculate 60*60, I get this:

select count(*) from log where starttime between now()-interval(3600) and now() and statuscode='2';
ERROR: parser: parse error at or near "and"

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