CAS 104987-11-3: Tacrolimus
Description:Tacrolimus, with the CAS number 104987-11-3, is an immunosuppressive drug primarily used to prevent organ rejection in transplant patients and to treat certain autoimmune conditions. It is a macrolide lactone derived from the bacterium Streptomyces tsukubaensis. Tacrolimus functions by inhibiting T-lymphocyte activation and proliferation, primarily through the inhibition of calcineurin, a critical enzyme in T-cell signaling. This mechanism helps to suppress the immune response. The substance is typically administered in its topical form for skin conditions like atopic dermatitis or as an oral formulation for systemic use. Tacrolimus is lipophilic, which influences its absorption and distribution in the body. It has a relatively long half-life, necessitating careful monitoring of blood levels to avoid toxicity. Common side effects include increased risk of infections, nephrotoxicity, and neurotoxicity. Due to its potent immunosuppressive effects, tacrolimus is often used in conjunction with other immunosuppressants to enhance efficacy while minimizing adverse effects.
Formula:C44H69NO12
InChI:InChI=1S/C44H69NO12/c1-10-13-31-19-25(2)18-26(3)20-37(54-8)40-38(55-9)22-28(5)44(52,57-40)41(49)42(50)45-17-12-11-14-32(45)43(51)56-39(29(6)34(47)24-35(31)48)27(4)21-30-15-16-33(46)36(23-30)53-7/h10,19,21,26,28-34,36-40,46-47,52H,1,11-18,20,22-24H2,2-9H3/b25-19+,27-21+/t26-,28+,29+,30-,31+,32-,33+,34-,36+,37-,38-,39+,40+,44+/m0/s1
InChI key:InChIKey=QJJXYPPXXYFBGM-LFZNUXCKSA-N
SMILES:O=C1OC(C(=CC2CCC(O)C(OC)C2)C)C(C)C(O)CC(=O)C(C=C(C)CC(C)CC(OC)C3OC(O)(C(=O)C(=O)N4CCCCC14)C(C)CC3OC)CC=C
- Synonyms:
- 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propenyl)-, (3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)-
- 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propenyl)-, [3S-[3R*[E(1S*,3S*,4S*)],4S*,5R*,8S*,9E,12R*,14R*,15S*,16R*,18S*,19S*,26aR*]]-
- FR 900506
- 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propen-1-yl)-, (3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)-
- (3S,4R,5S,8R,9E,12S,14S,15R,16S,18R,19R,26aS)-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-Hexadecahydro-5,19-dihydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propen-1-yl)-15,19-epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone
