Efficient methylation of C2 in l-tryptophan by the cobalamin-dependent radical S-adenosylmethionine methylase TsrM requires an unmodified N1 amine
作者:Anthony J. Blaszczyk、Bo Wang、Alexey Silakov、Jackson V. Ho、Squire J. Booker
DOI:10.1074/jbc.m117.778548
日期:2017.9
TsrM catalyzes the methylation of C2 in l-tryptophan (Trp). This reaction is the firststep in the biosynthesis of the quinaldic acid moiety of the thiopeptide antibiotic thiostrepton, which exhibits potent activity against Gram-positive pathogens. TsrM is a member of the radical S-adenosylmethionine (SAM) superfamily of enzymes, but it does not catalyze the formation of 5'-deoxyadenosin-5'-yl or any
The invention relates to FSH receptor antagonist according to general formula (I) or a pharmaceutically acceptable salt thereof and to a pharmaceutical composition containing the same. The compounds can be used for the treatment and prevention of endometriosis, for the treatment and prevention of pre-menopausal and peri-menopausal hormone-dependent breast cancer, for contraception, and for the treatment of uterine fibroids and other menstrual-related disorders.
The invention relates to FSH receptor antagonist according to general formula I
or a pharmaceutically acceptable salt thereof and to a pharmaceutical composition containing the same. The compounds can be used for the treatment and prevention of endometriosis, for the treatment and prevention of pre-menopausal and peri-menopausal hormone-dependent breast cancer, for contraception, and for the treatment of uterine fibroids and other menstrual-related disorders.
本发明涉及通式 I 的 FSH 受体拮抗剂
或其药学上可接受的盐,以及含有这些化合物的药物组合物。这些化合物可用于治疗和预防子宫内膜异位症、治疗和预防绝经前和围绝经期激素依赖性乳腺癌、避孕、治疗子宫肌瘤和其他月经相关疾病。
Conformationally constrained amino-acids: Synthesis of novel β, β-, 2,3-, and 3,4-cyclised tryptophans
作者:David C. Horwell、Mary J. McKiernan、Simon Osborne
DOI:10.1016/s0040-4039(98)01920-0
日期:1998.11
The synthesis of novel conformationally constrained tryptophan mimetics is described. (C) 1998 Elsevier Science Ltd. All rights reserved.