5b-Cholestane-3a,7a,12a,23R,25-pentol
IUPAC 名称
(1S,2S,5R,7S,9R,10R,11S,14R,15R,16S)-14-[(2R,4R)-4,6-dihydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecane-5,9,16-triol
描述
5b-Cholestane-3a,7a,12a,23R,25-pentol is a bile alcohol present in the urine of patients with cerebrotendinous xanthomatosis, but not in feces. A possible explanation for the urinary cholestanepentols is that the major serum bile alcohol, 5b-cholestane-3a,7a,12a,25-tetrol, might be hydroxylated at C-23 to form (23)-5b-cholestane-3a,7a,12a,23,25-pentols in the kidneys, an hypothesis supported by the fact that in our patient (23R)-5b-cholestane-3a,7a,12a,23,25-pentol was detected only in urine but were virtually absent in bile. (PMID 3700361) [HMDB]
异构
[H][C@@]1(CC[C@@]2([H])[C@]3([H])[C@H](O)C[C@]4([H])C[C@H](O)CC[C@]4(C)[C@@]3([H])C[C@H](O)[C@]12C)[C@H](C)C[C@@H](O)CC(C)(C)O
InChI标识符
InChI=1S/C27H48O5/c1-15(10-18(29)14-25(2,3)32)19-6-7-20-24-21(13-23(31)27(19,20)5)26(4)9-8-17(28)11-16(26)12-22(24)30/h15-24,28-32H,6-14H2,1-5H3/t15-,16+,17-,18-,19-,20+,21+,22-,23+,24+,26+,27-/m1/s1
键
OXSBBBPDYVCAKC-DYGXNTOZSA-N