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| Year of first isolation: | 1970 |  | Formula: | C27H46O5 |  | Molecular weight: | 450 |  | Occurence in plants: |  | Cheilanthes tenuifolia [Pteridaceae] »   ![Wikipedia: Cheilanthes tenuifolia [Pteridaceae]](/images/wikipedia.png) Cheilanthes mysurensis [Pteridaceae] »
   ![Wikipedia: Cheilanthes mysurensis [Pteridaceae]](/images/wikipedia.png) 
 |  | Occurence in animals: |  |  |  |   |  |
 | | Canonical SMILES | CC(C)CCC(C(C)C1CCC2(C1(CCC3C2CC(=O)C4C3(CC(C(C4)O)O)C)C)O)O |  | Isomeric SMILES [ PubChem: search | XML ]
 [ ChemSpider: search ]
 | C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)CC1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@H](C)[C@@H](CCC(C)C)O)O)C)C  »  C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C[C@H]1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@H](C)[C@@H](CCC(C)C)O)O)C)C  »
  C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C[C@@H]1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@H](C)[C@@H](CCC(C)C)O)O)C)C »
  
 |  | IUPAC Name | (2S,3R,5R,8R,9S,10R,13R,14R,17R)-2,3,14-trihydroxy-17-[(2S,3R)-3-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,5,7,8,9,11,12,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-6-one |  | CAS-RN | 26130-75-6 |  | PubChem CID | 101297732 |  | InChiKey [ ChemIDPlus: search ]
 | ZQJLJTBAWSHGIA-XHCKOWILSA-N |  | InChI | InChI=1S/C27H46O5/c1-15(2)6-7-21(28)16(3)17-9-11-27(32)19-12-22(29)20-13-23(30)24(31)14-25(20,4)18(19)8-10-26(17,27)5/h15-21,23-24,28,30-32H,6-14H2,1-5H3/t16-,17+,18-,19+,20-,21+,23+,24-,25+,26+,27+/m0/s1 | 
 
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 | | CI-MS (NH3) m/z |  |  | EI-MS m/z (relative intensity %) | 450(M)+ (2.5), 432 (M -18)+(9.5), 417 (1), 414 (M -2x18)+(7), 399 (1.5), 396 (M -3x18)+(1), 381 (0.5), 350 (M - C22-C27)+(3.5), 332 (M-C22-C27-18)+ (21), 302 (M-C20-C27)+ (25), 101 (5.5), 83 (61), 69 (57), 55 (100). |  | HR-MS |  | 
 
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 | | C5D5N |  | 01 |  |  | 02 |  |  | 03 |  |  | 04 |  |  | 05 |  |  | 06 |  |  | 07 |  |  | 08 |  |  | 09 |  |  | 10 |  |  | 11 |  |  | 12 |  |  | 13 |  |  | 14 |  |  | 15 |  |  | 16 |  |  | 17 |  |  | 18 |  |  | 19 |  |  | 20 |  |  | 21 |  |  | 22 |  |  | 23 |  |  | 24 |  |  | 25 |  |  | 26 |  |  | 27 |  | 
 | | C5D5N |  | 01-Ha |  |  | 01-Hb |  |  | 02-Ha |  |  | 03-He |  |  | 04-Ha |  |  | 04-He |  |  | 05-H |  |  | 07-Ha |  |  | 07-Hb |  |  | 08-H |  |  | 09-Ha |  |  | 11-Ha |  |  | 11-He |  |  | 12-Ha |  |  | 12-He |  |  | 15-Ha |  |  | 15-Hb |  |  | 16-Ha |  |  | 16-Hb |  |  | 17-H |  |  | 18-Me | 0.85 (s ) |  | 19-Me | 1.03 (s ) |  | 21-Me | 1.24 (d, 6) |  | 22-H |  |  | 23-Ha |  |  | 23-Hb |  |  | 24-Ha |  |  | 24-Hb |  |  | 25-H |  |  | 26-Me | 0.84 (d, 6) |  | 27-Me | 0.84 (d, 6) | 
 | CDCl3 (2,3,22-triOAc) |  | 01-Ha |  |  | 01-Hb |  |  | 02-Ha | 5.38 (w1/2 = 8) |  | 03-He | ~ 4.9 |  | 04-Ha |  |  | 04-He |  |  | 05-H |  |  | 07-Ha |  |  | 07-Hb |  |  | 08-H |  |  | 09-Ha |  |  | 11-Ha |  |  | 11-He |  |  | 12-Ha |  |  | 12-He |  |  | 15-Ha |  |  | 15-Hb |  |  | 16-Ha |  |  | 16-Hb |  |  | 17-H |  |  | 18-Me | 0.81 |  | 19-Me | ~ 0.95 |  | 21-Me | ~ 0.95 |  | 22-H | ~ 4.9 |  | 23-Ha |  |  | 23-Hb |  |  | 24-Ha |  |  | 24-Hb |  |  | 25-H |  |  | 26-Me | 0.90 (d, 6) |  | 27-Me | 0.90 (d, 6) |  | acetates | 2.01, 2.05, 2.10 | 
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 | | M.P. | 225-228 °C(or 230°-235°C) |  | [α]D20 | -25.9 ° (c ; MeOH) |  | IR (KBr) ν max (cm-1) | 3636 (OH), 1684 (or 1704 ?) (carbonyl) |  | UV (EtOH) λ max (log ε) |  | 
 
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 | | HPTLC |  |  | TLC | NP-TLC on silica, Rf 0.50 (CHCl3 - 96% EtOH 4:1) (ecdysone 0.20) |  | GLC |  |  | HPLC |  | 
 
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 | | Drosophila melanogaster BII cell assay: EC50 = 1.3 x 10-7M | 
 
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 |  | Permanent link to this datasheet: CHEILANTHONE B |  |