Efficient Synthesis of 5,5-Disubstituted Bis-hydantoins/spirohydantoins and a Tetrakis-analogue: A Drug-like Multi-cyclic Scaffold
نویسندگان
چکیده مقاله:
An easy method was developed for the efficient preparation of diversely new 5,5-disubstituted N(3),N'(3)-linkaged bis-hydantoins. At first, using the same methods, some ketones and terephthalaldehyde were converted to several hydantoins and a new bis-hydantoin , respectively. Then 1,6-dibromohexane, as a mild reagent, was employed for the alkylation and incorporation of synthesized substrates to produce quantitative yields of the desired bis-hydantoins. A tetrakis-hydantoin including four effective heterocyclic rings was also surprisingly synthesized from 5,5'-(1,4-phenylene)bis(imidazolidine-2,4-dione). The aim of this study is to synthesis of bis- and tetra core-hydantoins, bis-drug-like molecules employing a practical and reliable reaction process that requires slight amount of reagents; a process that is simple, accessible producing remarkable yields from an easy procedure that is cost effective and/or environmentally friendly. The resultant hydantoins potentially have bis- or multi-drugs behaviors in comparison with mono-counterparts, as cited in literatures for similar heterocyclic compounds. Spectral analysis confirmed the structures of the synthesized hydantoins.
منابع مشابه
efficient synthesis of fertirelin acetate as a reproductive control drug: a gnrh hormone analogue
متن کامل
A Simple, Practical and Efficient Method for the Synthesis of New Disubstituted 1,3,4-oxadiazoles
Reactions of N-isocyaniminotriphenylphosphorane with α- chloroketones in the presence ofaromatic carboxylic acids proceed smoothly at room temperature and in neutral conditions toafford new disubstituted 1,3,4-oxadiazole derivatives in high yields.
متن کاملSulfamic acid: A green and efficient catalyst for synthesis of mono-, bis-, and spiro- perimidines
Mild and applicable synthesis of mono-, bis-, and spiro- perimidines is demonstrated in high yields via the condensation of 1,8-diaminonaphthalene and aldehydes or ketones in the presence of sulfamic acid as a green and highly efficient catalyst. This environmentally benign and clean synthetic pathway offers several advantages, such as high yields, short reaction times and easy work-up procedure.
متن کاملSulfamic acid: A green and efficient catalyst for synthesis of mono-, bis-, and spiro- perimidines
Mild and applicable synthesis of mono-, bis-, and spiro- perimidines is demonstrated in high yields via the condensation of 1,8-diaminonaphthalene and aldehydes or ketones in the presence of sulfamic acid as a green and highly efficient catalyst. This environmentally benign and clean synthetic pathway offers several advantages, such as high yields, short reaction times and easy work-up procedure.
متن کاملa comparison of linguistic and pragmatic knowledge: a case of iranian learners of english
در این تحقیق دانش زبانشناسی و کاربردشناسی زبان آموزان ایرانی در سطح بالای متوسط مقایسه شد. 50 دانش آموز با سابقه آموزشی مشابه از شش آموزشگاه زبان مختلف در دو آزمون دانش زبانشناسی و آزمون دانش گفتار شناسی زبان انگلیسی شرکت کردند که سوالات هر دو تست توسط محقق تهیه شده بود. همچنین در این تحقیق کارایی کتابهای آموزشی زبان در فراهم آوردن درون داد کافی برای زبان آموزان ایرانی به عنوان هدف جانبی تحقیق ...
15 صفحه اولA facile and efficient synthesis of Baclofen
γ-Aminobutiric acid (GABA), the major inhibitory neurotransmitter in the central nervous system is activated by the antispastic and muscle relaxant agent, Baclofen, which is a lipophilic derivative of GABA. Because of its biological and pharmacological importance, there are several reports in the literature about the synthesis of baclofen since 1962. In this study baclofen was easily synthesize...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 3 شماره 2
صفحات 112- 118
تاریخ انتشار 2017-10-01
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023