Definition: Benzopyrroles with the nitrogen at the number two carbon, in contrast to INDOLES which have the nitrogen adjacent to the six-membered ring.
RP 67580 [ 7,7-diphenyl-2-(1-imino-2-(2-methoxyphenyl)ethyl)perhydroisoindol-4-one,RP 68651,RP-67580,RP-68651 ] structure given in first source; RP 68651 is the inactive (3aS,7aS)-isomer; substance P antagonist