Burn et al., Journal of the Chemical Society, 1957, p. 4092,4096
作者:Burn et al.
DOI:——
日期:——
Communications - Steroids. LXXXIV. Synthesis of 6-Methyl Hormone Analogs.
作者:H. Ringold、E. Batres、G. Rosenkranz
DOI:10.1021/jo01352a619
日期:1957.1
Preparation of 6-Methyl Steroids by the “Oxo Reaction”
作者:P. F. Beal、M. A. Rebenstorf、J. E. Pike
DOI:10.1021/ja01514a054
日期:1959.3
Neurosteroid Analogues. 10. The Effect of Methyl Group Substitution at the C-6 and C-7 Positions on the GABA Modulatory and Anesthetic Actions of (3α,5α)- and (3α,5β)-3-Hydroxypregnan-20-one
作者:Chun-min Zeng、Brad D. Manion、Ann Benz、Alex S. Evers、Charles F. Zorumski、Steven Mennerick、Douglas F. Covey
DOI:10.1021/jm049027+
日期:2005.4.1
those of the parent steroids. A 6alpha-, 7beta- or 7alpha-Me substituent resulted in reduced potency for inhibition of radioligand binding, GABA(A) receptor modulation and tadpole anesthesia. Because of the similar effects of methyl group substitution in the two series of compounds and previous results from other studies showing that structural modifications in the steroidDring/side chain region produce
Steroidal Antagonists of Progesterone- and Prostaglandin E<sub>1</sub>-Induced Activation of the Cation Channel of Sperm
作者:Erick J. Carlson、Gunda I. Georg、Jon E. Hawkinson
DOI:10.1124/molpharm.121.000349
日期:2022.1
calcium in human spermatozoa and its proper function is essential for successful fertilization. As CatSper is potently activated by progesterone, we evaluated a range of steroids to define the structure-activity relationships for channel activation and found that CatSper is activated by a broad range of steroids with diverse structural modifications. By testing steroids that failed to elicit calcium influx
精子的阳离子通道 (CatSper) 是人体精子中钙的主要入口点,其正常功能对于成功受精至关重要。由于 CatSper 被黄体酮有效激活,我们评估了一系列类固醇来定义通道激活的构效关系,发现 CatSper 被多种结构修饰的类固醇激活。通过测试不能引起钙内流作为通道激活抑制剂的类固醇,我们发现醋酸甲羟孕酮、左炔诺孕酮和醛固酮可抑制黄体酮、前列腺素 E 1和真菌天然产物l产生的钙内流-sirenin,但这些甾体抑制剂未能阻止钙流入以响应 K +升高和 pH 值。与这些类固醇拮抗剂相比,我们首次证明 T 型钙通道阻滞剂 ML218 的作用类似于米贝拉地尔,阻断由配体和碱化/去极化激活的 CatSper 通道。这些 T 型钙通道阻滞剂对 CatSper 产生了无法克服的阻断作用,而三种类固醇产生的拮抗作用可以通过增加每种激活剂的浓度来克服,这表明类固醇选择性地拮抗配体诱导的 CatSper 激活