'grepl to search strings containing more than 2 paterns than includes parenthesis in R

Good afternoon, I want to search for a string that contains two times the pattern "1)2"

I tried: grepl('(1.+\).+2){2}', variable, fixed=TRUE)

Thank you very much in advance¡¡¡¡

Solution 1:^[1]

How about this:

> grepl(".*1\\)2.*1\\)2.*", c("bla1)2bla", "bla1)2blabla1)2bla", "blablabla"))
[1] FALSE  TRUE FALSE

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Solution	Source
Solution 1	Santiago Capobianco