1 1R6 (12s)-12-[(1r)-2-{[(4s)-6-ethyl-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl]amino}-1-hydroxyethyl]-1,13-diazatricyclo[13.3.1.1~6,10~]icosa-6(20),7,9,15(19),16-pentaene-14,18-dione 1.000 2 1R8 (3s)-3-[(1r)-2-{[(4s)-6-ethyl-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl]amino}-1-hydroxyethyl]-4-azabicyclo[10.3.1]hexadeca-1(16),12,14-trien-5-one 0.791 3 1QT (3s)-3-[(1r)-2-{[(4s)-6-ethyl-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl]amino}-1-hydroxyethyl]-4-azabicyclo[11.3.1]heptadeca-1(17),13,15-trien-5-one 0.773