—— |
trans-dispiro(naphthalene-1,2'(1'H)-naphtho<2,1-b>pyran-3',1''-naphthalene)-2(1H),2''(1''H)-dione |
77003-53-3 |
C31H20O3 |
440.498 |
—— |
4b,5,6,6a-Tetrahydro-5,18a:6,10b-dimethano-18H-dibenzo<3,4:7,8>cyclobuta<5,6>cycloocta<1,2-b>naphtho<1,2-e>pyran-19,20-dione |
115755-63-0 |
C31H20O3 |
440.498 |
—— |
11,12-Dihydro-5H,10H-12,16b-ethano-5a,11-methano-10-(carbmethoxycyanomethyl)dibenzo<3,4:8,9>cyclonona<1,2-b>naphtho<1,2-e>pyran-20,22-dione |
135106-97-7 |
C35H25NO5 |
539.587 |
—— |
11,12-Dihydro-5H,10H-12,16b-ethano-10-isopropoxy-5a,11-methanodibenzo<3,4:8,9>cyclonona<1,2-b>naphtho<1,2-e>pyran-20,22-dione |
135106-94-4 |
C34H28O4 |
500.594 |
—— |
11,12-Dihydro-5H,10H-5a,10-ethano-12-isopropoxy-11,16b-methanodibenzo<3,4:8,9>cyclonona<1,2-b>naphtho<1,2-e>pyran-20,22-dione |
135106-91-1 |
C34H28O4 |
500.594 |
—— |
cis-Dispiro-naphtho<2,1-b>pyran-3'(2'H),1''(2''H)naphthalene>-2(1H),2''(1''H)dione |
115755-62-9 |
C31H20O3 |
440.498 |
—— |
1,2-dihydro-2'h-spiro(benzo[f]chromene-3,1'-naphthalen)-2'-one |
40310-94-9 |
C22H16O2 |
312.368 |