Synonyms: Formamide,N-[(3a,4a,5a,20S)-2',3,3',4-tetrahydro-3',4,14-trimethyl-6'H-B(9a)-homo-19-norpregna-3,9(11),9a-trieno[3,4-d][1,3]oxazin-20-yl]-;Formamide, N-[1-(3,4,4a,5,6,9,9a,10,11,12,12a,12b,13,14,14a,14b-hexadecahydro-4,9a,12a,14b-tetramethyl-1H-indeno[5',4':4,5]cyclohepta[1,2-f][3,1]benzoxazin-10-yl)ethyl]-,[4aS-[4aa,9ab,10b(R*),12aa,12bb,14aa,14ba]]-; Nb-Formyl-Nb-nor-(+)-harappamine; Papillamidine