纳洛酮于20世纪60年代合成并逐渐应用于临床。近年来,随着研究深入,内源性阿片肽尤其是β-内啡肽在多种疾病病理生理过程中的作用进一步明确。作为阿片受体的特异性拮抗剂,纳洛酮能有效阻断和逆转内源性阿片肽的毒性作用,并广泛应用于各种急性中毒、肝性脑病、脑卒中、颅脑和脊髓损伤、休克、新生儿窒息、心肺复苏、眩晕症、阿片类药物急性中毒的解毒及其依赖患者的诊断与治疗、麻醉后的催醒等。随着对其药理机制研究的不断深入,纳洛酮的应用领域也不断拓展。
纳洛酮(Naloxone)又名丙烯吗啡,是一种羟二氢吗啡酮衍生物,其化学结构类似于吗啡,是特异性的吗啡受体拮抗剂,对阿片样物质及内源性阿片样物质、内啡肽和脑啡肽具有特异性拮抗作用。β-内啡肽(β-endorphin,β-EP)在内源性阿片受体类似物中活性最强,并在痛觉感知、镇痛、垂体激素分泌、心血管活性及呼吸调节等方面发挥作用。在脑梗死、休克、脑缺氧及应激情况下,脑内β-内啡肽释放增加。纳洛酮通过对内啡肽的拮抗作用而发挥兴奋中枢神经、促进呼吸和抑制中枢迷走神经的作用,从而使血中去甲肾上腺素和肾上腺素水平升高,血压上升。
药理作用纳洛酮是一种纯粹的阿片受体拮抗药,自身并无内在活性,但能竞争性拮抗各类阿片受体,特别是对μ受体有很强的亲和力。盐酸纳洛酮起效迅速,具有强大的拮抗作用,并可逆转阿片激动剂的所有作用(包括镇痛),还具有与阿片受体无关的复苏作用。它可以快速逆转阿片类镇痛药引起的呼吸抑制,引发高度兴奋,增强心血管功能。此外,纳洛酮还具有抗休克作用,不会产生吗啡的依赖性、戒断症状及呼吸抑制。
药代动力学静注后1~2分钟即可达到最大效应,持续约45分钟;肌注后5~10分钟产生最大效应,持续2.5~3小时。纳洛酮吸收迅速,易通过血脑屏障,代谢快,人血浆半衰期为60~90分钟,主要在肝脏内进行生物转化。
适应症纳洛酮适用于阿片类药物过量中毒;用于诊断阿片类药物成瘾;应用于吗啡类复合麻醉药术后,解除呼吸抑制、催醒及急性酒精中毒。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
氢羟吗啡酮 | oxymorphone | 76-41-5 | C17H19NO4 | 301.342 |
—— | 3-acetyloxymorphone | 75660-23-0 | C19H21NO5 | 343.379 |
14-羟基二氢降吗啡酮盐酸盐 | noroxymorphone | 33522-95-1 | C16H17NO4 | 287.315 |
4,5-Alpha-环氧- 14 -羟基- 3 -甲氧基- 17-甲基- 呋喃 | noroxycodone | 57664-96-7 | C17H19NO4 | 301.342 |
(5alpha)-17-甲基-6-氧代-4,5-环氧吗喃-3,14-二基二乙酸酯 | 3,14-diacetyloxymorphone | 64643-76-1 | C21H23NO6 | 385.417 |
—— | 14-hydroxymorphinone | 41135-98-2 | C17H17NO4 | 299.326 |
奥列巴文 | oripavine | 467-04-9 | C18H19NO3 | 297.354 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
纳曲酮EP杂质J | naltrexone methyl ether | 16617-07-5 | C21H25NO4 | 355.434 |
7,8-二氢-14-羟基-N-(2-丙炔基)-去甲吗啡酮 | (-)-N-propargylnoroxymorphone | 73232-47-0 | C19H19NO4 | 325.364 |
—— | (5α)-17-allyl-14-hydroxy-6-oxo-4,5-epoxymorphinan-3-yl N-cyclobutylmethyl-14-hydroxy-morphinan-3-yl decanedioate | 1310086-95-3 | C50H64N2O8 | 821.067 |
14-羟基二氢降吗啡酮盐酸盐 | noroxymorphone | 33522-95-1 | C16H17NO4 | 287.315 |
4,5-Alpha-环氧- 14 -羟基- 3 -甲氧基- 17-甲基- 呋喃 | noroxycodone | 57664-96-7 | C17H19NO4 | 301.342 |
—— | (5α)-17-allyl-14-hydroxy-6-oxo-4,5-epoxymorphinan-3-yl 14-methoxy-N-cyclobutylmethylmorphinan-3-yl decanedioate | 1310087-01-4 | C51H66N2O8 | 835.094 |
—— | α-naloxamine | 360770-18-9 | C19H24N2O3 | 328.411 |
—— | β-naloxamine | —— | C19H24N2O3 | 328.411 |
6alpha-纳洛醇 | 6α-naloxol | 20410-95-1 | C19H23NO4 | 329.396 |
—— | 6β-Naloxol | 53154-12-4 | C19H23NO4 | 329.396 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-(acetamido)morphinan | 360770-20-3 | C21H26N2O4 | 370.448 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-(cyclohexanamido)morphinan | 1373215-01-0 | C26H34N2O4 | 438.567 |
—— | 14-hydroxymorphinone | 41135-98-2 | C17H17NO4 | 299.326 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-(benzamido)morphinan | 1373214-79-9 | C26H28N2O4 | 432.519 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4-iodo)benzamido]morphinan | 1373214-75-5 | C26H27IN2O4 | 558.416 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-methoxy)benzamido]morphinan | 1373214-82-4 | C27H30N2O5 | 462.546 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-hydroxy)benzamido]morphinan | 1373214-85-7 | C26H28N2O5 | 448.519 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-methyl)benzamido]morphinan | 1373214-80-2 | C27H30N2O4 | 446.546 |
—— | IBNalA | 1314879-45-2 | C26H27IN2O4 | 558.416 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-iodo)benzamido]morphinan | 1373214-69-7 | C26H27IN2O4 | 558.416 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-fluoro)benzamido]morphinan | 1373214-76-6 | C26H27FN2O4 | 450.51 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-bromo)benzamido]morphinan | 1373214-78-8 | C26H27BrN2O4 | 511.415 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4-trifluoromethoxy)benzamido]morphinan | 1373214-87-9 | C27H27F3N2O5 | 516.517 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-amino)benzamido]morphinan | 1373214-83-5 | C26H29N3O4 | 447.534 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(2-iodo)benzamido]morphinan | 1373214-74-4 | C26H27IN2O4 | 558.416 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-chloro)benzamido]morphinan | 1373214-77-7 | C26H27ClN2O4 | 466.964 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4-phenyl)benzamido]morphinan | 1373214-94-8 | C32H32N2O4 | 508.617 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-dimethylamino)benzamido]morphinan | 1373214-84-6 | C28H33N3O4 | 475.588 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-nitro)benzamido]morphinan | 1373214-86-8 | C26H27N3O6 | 477.517 |
—— | 17-allyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(3-trifluoromethyl)benzamido]morphinan | 1373214-81-3 | C27H27F3N2O4 | 500.518 |
(5'S,13'R)-4'-烯丙基-10',17'-二羟基-2,5-二氧代螺[咪唑烷-4,14'-[12]氧杂[4]铵五环[9.6.1.01,13.05,17.07,18]十八碳[3,7(18),8,10]四烯] | Naloxone-6-spirohydantoin | 87872-71-7 | C21H23N3O5 | 397.431 |
4,8-亚甲基苯并呋喃并[2,3-a]吡啶并[4,3-b]咔唑-1,8a(9H)-二酚,5,6,7,8,14,14b-六氢-7-(2-丙烯基)-,(4bS,8R,8aS,14bR)-(9CI) | SYK-706 | 126580-45-8 | C25H24N2O3 | 400.477 |
—— | ethyl 2-((4bR,7R,8aS,9R)-11-(cyclopropylmethyl)-8a-hydroxy-3-methoxy-6-oxo-6,7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthren-7-yl)acetate | 1616555-95-3 | C25H33NO5 | 427.541 |
—— | 17-allyl-1'-benzyl-6,7-didehydro-4,5α-epoxy-3,14,5'-trihydroxyindolo[2',3':6,7]morphinan | —— | C32H30N2O4 | 506.601 |
—— | (±)-ibogaine | 83-74-9 | C20H26N2O | 310.439 |