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複素環(huán)式化合物

複素環(huán)式化合物は炭素原子と非炭素原子により構(gòu)成される環(huán)狀構(gòu)造の化合物である。これらの非炭素原子はヘテロ原子と総稱(chēng)され，一般的なヘテロ原子は窒素、酸素、硫黃等である。前述したラクトン、ラクタム、環(huán)狀エーテル等の化合物はいずれも複素環(huán)式化合物であり，しかしこれらの化合物の性質(zhì)は同じ種類(lèi)の鎖式化合物と類(lèi)似するため，いずれも対応する章節(jié)に組み込んで説明する。本章は主に環(huán)構(gòu)造が穏やかで、ある程度の芳香族性を有する複素環(huán)式化合物，即ち芳香族複素環(huán)式化合物を説明する。複素環(huán)式化合物は種類(lèi)が膨大であり，數(shù)量が多く，自然界に広く分布しており，多くの天然の複素環(huán)式化合物は動(dòng)物、植物の體內(nèi)で重要な生理學(xué)的作用を果たす。例えば：植物內(nèi)のクロロフィル、動(dòng)物の血中ヘモグロビン、漢方薬中の有効成分のアルカロイドと一部の配糖體、一部の抗生物質(zhì)とビタミン、タンパク質(zhì)のあるアミノ酸とヌクレオチドを構(gòu)成する塩基等はいずれも複素環(huán)構(gòu)造を含有する。従來(lái)の薬物中で、複素環(huán)構(gòu)造を含有するものは約半分を占める。そのため，複素環(huán)式化合物は有機(jī)化合物（特に有機(jī)薬物）中で重要な地位を占める。複素環(huán)式化合物中で五員、六員複素環(huán)及びそれらの縮合複素環(huán)化合物は最も普及しており，かつ最も重要である。そのため環(huán)のサイズによって，複素環(huán)式化合物は五員複素環(huán)及び六員複素環(huán)という二つの種類(lèi)に分けられる。例えば上記フラン、チオフェン、ピロール、オキサゾール、イミダゾール及びそれらの縮合複素環(huán)化合物のインドール、ベンゾイミダゾール、ジベンゾフラン等はいずれも五員複素環(huán)式化合物であり，それに対してピリジン、ピリミジン及びそれらの縮合複素環(huán)化合物のキノリン、キナゾリン等はいずれも六員複素環(huán)式化合物である。各五員複素環(huán)式化合物と六員複素環(huán)式化合物中で，環(huán)構(gòu)造中のヘテロ原子の數(shù)量によって，また一つのヘテロ原子を含有する複素環(huán)及び二つ又はそれ以上のヘテロ原子を含有する複素環(huán)に分けられる。例えばフラン、チオフェン、ピリジン、インドール、キノリン、ジベンゾフラン等は一つのヘテロ原子を含有する複素環(huán)式化合物である；イミダゾール、ピリミジン、ベンゾイミダゾール、キナゾリン等は二つのヘテロ原子を含有する複素環(huán)式化合物である；それに対してプリンは二つ以上のヘテロ原子を含有するため，即ち複數(shù)のヘテロ原子を含有する複素環(huán)式化合物である。分子中の環(huán)構(gòu)造の形式によって，複素環(huán)式化合物はさらに複素単環(huán)及び縮合複素環(huán)という二つの種類(lèi)に分けられる。例えばフラン、ピリジン、ピリミジン、イミダゾール等はいずれも複素単環(huán)式化合物であり，インドール、キノリン、ジベンゾフラン、プリン等は縮合複素環(huán)式化合物である。

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Chemical Name	CAS	MF
5-bromo-2-(cyclopropyl-d5)pyrimidine	2600400-10-8	C7H2BrD5N2
tert-butyl 4-(5-bromopyridin-3-yl-2,4,6-d3)piperidine-1-carboxylate	2697155-08-9	C15H18BrD3N2O2
4-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridin-2,5,6-d3-3-amine	2363788-35-4	C11H2D15N3
5-bromo-2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)pyridine-3,4,6-d3	2363781-38-6	C9BrD11N2O
2-bromo-5-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)pyridine	2363783-42-8	C9H3BrD8N2O
2-bromo-5-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)pyridine-3,4,6-d3	2645418-78-4	C8BrD10NO2
3-bromo-4-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridine-2,5,6-d3	2363789-79-9	C11BrD15N2
tert-butyl 4-(5-bromopyridin-2-yl-3,4,6-d3)piperidine-1-carboxylate	2697162-81-3	C15H18BrD3N2O2
4-bromo-2-((methoxy-d3)methyl-d2)pyridine	2645412-62-8	C7H3BrD5NO
3,6-dibromo-2-(methyl-d3)pyridine-4,5-d2	2600399-49-1	C6Br2D5N
5-(methyl-d3)pyrimidin-4,6-d2-2-ol	2241865-65-4	C5HD5N2O
2-bromo-6-(tetrahydro-2H-pyran-4-yl)pyridine-3,4,5-d3	2697156-29-7	C10H9BrD3NO
2-bromo-4-((methoxy-d3)methyl-d2)pyridine	2645413-90-5	C7H3BrD5NO
2-bromo-4-(tetrahydro-2H-pyran-4-yl-3,3,4,5,5-d5)pyridine	2697156-23-1	C10H7BrD5NO
6-((methoxy-d3)methyl-d2)pyridin-3,4,5-d3-2-amine	2645413-91-6	C7H2D8N2O
3-bromo-6-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridazine	2363786-11-0	C10H2BrD12N3
2-bromo-4-(tetrahydro-2H-pyran-4-yl)pyrimidine-5,6-d2	2697163-15-6	C9H9BrD2N2O
2-((methoxy-d3)methyl-d2)pyrimidin-5,6-d2-4-amine	2645420-04-6	C6H2D7N3O
6-bromo-2,8-bis(methyl-d3)imidazo[1,2-b]pyridazine-3,7-d2	2645419-40-3	C8BrD8N3
6-bromo-2-methyl-8-(methyl-d3)imidazo[1,2-b]pyridazine-7-d	2645417-30-5	C8H4BrD4N3
8-(methyl-d3)imidazo[1,2-b]pyridazin-2,3,7-d3-6-amine	2645417-14-5	C7H2D6N4
6-aminopyridin-2,4,5-d3-3-ol	2645417-15-6	C5H3D3N2O
5-bromo-7-(methyl-d3)pyrazolo[1,5-a]pyrimidine-2,3,6-d3	2645412-79-7	C7BrD6N3
8-bromoimidazo[1,2-a]pyridine-2,3,5,6,7-d5	2645412-90-2	C7BrD5N2
imidazo[1,5-a]pyridin-d5-5-amine	2645411-82-9	C7H2D5N3
5-methylpyridin-2,4,6-d3-3-ol	2645415-79-6	C6H4D3NO
4-methylpyridin-3,5,6-d3-2-amine	2645415-85-4	C6H5D3N2
5-bromo-N-methylpyridin-3,4,6-d3-2-amine	2645416-11-9	C6H4BrD3N2
2-bromo-N-methylpyridin-3,5,6-d3-4-amine	2645415-88-7	C6H4BrD3N2
2-bromo-6-fluoro-4-methoxypyridine-3,5-d2	2645413-57-4	C6H3BrD2FNO
tert-butyl 4-(4-hydroxypyridin-2-yl-3,5,6-d3)piperazine-1-carboxylate	2645416-91-5	C14H18D3N3O3
3-bromo-6-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridazine-4,5-d2	2363786-22-3	C10BrD14N3
6-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridazin-3-ol	2363781-54-6	C10H3D12N3O
4-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyrimidin-5,6-d2-2-ol	2363780-39-4	C10HD14N3O
4-(3-methylpiperidin-1-yl)pyrimidin-5,6-d2-2-ol	2363785-79-7	C10H13D2N3O
5-bromo-2-(2-methylpiperidin-1-yl)pyrimidine-4,6-d2	2363785-91-3	C10H12BrD2N3
2-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyrimidin-5-amine	2363780-91-8	C10H4D12N4
2,5-dichloropyridine-3,4,6-d3	1001003-87-7	C5Cl2D3N
2-(methyl-d3)pyridin-3,5,6-d3-4-amine	2256713-62-7	C6H2D6N2
6-(trifluoromethyl)pyridin-3,4,5-d3-2-amine	2256713-42-3	C6H2D3F3N2
4-bromo-2-((oxetan-3-yl-d5)oxy)pyridine-3,5,6-d3	2363788-69-4	C8BrD8NO2
3-((oxetan-3-yl-d5)oxy)pyridin-4-amine	2363783-85-9	C8H5D5N2O2
3-((oxetan-3-yl-d5)oxy)pyridin-2,5,6-d3-4-amine	2363789-48-2	C8H2D8N2O2
3-bromo-4-(oxetan-3-yloxy)pyridine-2,5,6-d3	2363780-56-5	C8H5BrD3NO2
3-bromo-6-((oxetan-3-yl-d5)oxy)pyridazine-4,5-d2	2363782-52-7	C7BrD7N2O2
4-((oxetan-3-yl-d5)oxy)pyrimidin-2-amine	2363782-80-1	C7H4D5N3O2
2-bromo-4-(ethyl-d5)pyrimidine-5,6-d2	2241865-69-8	C6BrD7N2
4-chloro-2,6-bis(methyl-d3)pyrimidine-5-d	2697162-88-0	C6ClD7N2
2,6-bis(methyl-d3)pyrimidin-4-amine	2697155-71-6	C6H3D6N3
5-(trifluoromethyl)pyridin-2,4,6-d3-3-ol	2697156-91-3	C6HD3F3NO
4-bromo-3-methoxypyridine-2,5,6-d3	2697156-52-6	C6H3BrD3NO
2-(ethyl-d5)-6-fluoropyridine-3,4,5-d3	2697156-97-9	C7D8FN
6-(ethyl-d5)pyridin-2,4,5-d3-3-amine	2697156-62-8	C7H2D8N2
4-bromo-3,5-dimethylpyridine-2,6-d2	2697162-95-9	C7H6BrD2N
4-bromo-6-(methyl-d3)pyridin-3-amine	2645419-95-8	C6H4BrD3N2
3-bromo-2-(methyl-d3)pyridine-4,5,6-d3	2645416-07-3	C6BrD6N
4-bromo-6-(methyl-13C-d3)pyrimidine	2645417-39-4	C5H2BrD3N2
6-bromo-1-(ethyl-d5)pyridin-2(1H)-one-3,4,5-d3	2645412-92-4	C7BrD8NO
2-chloro-5-hydroxy-3-(methyl-d3)pyrimidin-4(3H)-one	2645413-18-7	C5H2ClD3N2O2
3-(methyl-d3)-2-(trifluoromethyl)pyridin-5,6-d2-4-amine	2645419-33-4	C7H2D5F3N2
2,3,5-tris(methyl-d3)pyridin-6-d-4-amine	2645414-08-8	C8H2D10N2
4-bromo-6-(methyl-d3)pyrimidine-2,5-d2	2241865-95-0	C5BrD5N2
2-bromo-6-((1-(methyl-d3)azetidin-3-yl-2,2,3,4,4-d5)oxy)pyridine	2645412-25-3	C9H3BrD8N2O
4-bromo-2-((1-(methyl-d3)azetidin-3-yl-2,2,3,4,4-d5)oxy)pyridine-3,5,6-d3	2645418-55-7	C9BrD11N2O
3-bromo-7-methylpyrido[2,3-d]pyridazin-8(7H)-one-2,4,5-d3	2645414-01-1	C8H3BrD3N3O
4-bromopyridine-3,5-d2-2,6-diamine	2645416-72-2	C5H4BrD2N3
3-bromo-2-(methyl-d3)pyridin-4-amine	2697156-19-5	C6H4BrD3N2
hexahydropyrimidine-2,2,4,4,5,5,6,6-d8	2697162-40-4	C4H2D8N2
tert-butyl 4-(5-bromopyridin-3-yl)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2697155-40-9	C15H12BrD9N2O2
tert-butyl 4-(2-bromopyrimidin-4-yl-5,6-d2)piperidine-1-carboxylate	2697162-49-3	C14H18BrD2N3O2
tert-butyl 4-(5-bromopyridin-2-yl-3,4,6-d3)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2697155-97-6	C15H9BrD12N2O2
6-(methyl-d3)pyridin-3,4,5-d3-2-amine	916979-12-9	C6H2D6N2
5-bromo-4-chloropyrimidine-2,6-d2	2363787-76-0	C4BrClD2N2
3-fluoro-2-(methyl-d3)pyridine	2363781-98-8	C6H3D3FN
5-bromo-3-chloro-2-fluoropyridine-4,6-d2	2460490-02-0	C5BrClD2FN
5-chloro-2-fluoropyridine-3,4,6-d3	2460493-08-5	C5ClD3FN
2,4-dichloro-6-fluoropyridine-3,5-d2	2460501-51-1	C5Cl2D2FN
2-bromo-3-(difluoromethyl-d)pyridine-4,5,6-d3	2460492-33-3	C6BrD4F2N
4-chloro-2-(difluoromethyl-d)-6-(methyl-d3)pyridine-3,5-d2	2460501-56-6	C7ClD6F2N
2-(methyl-d3)-6-(trifluoromethyl)pyridin-3,5-d2-4-amine	2460493-20-1	C7H2D5F3N2
2-bromo-6-(methoxy-d3)-4-(trifluoromethyl)pyridine-3,5-d2	2460490-70-2	C7BrD5F3NO
2-(methyl-d3)-6-(trifluoromethyl)pyridin-3,5-d2-4-ol	2460490-10-0	C7HD5F3NO
6-chloropyridin-2,4,5-d3-3-amine	2460494-34-0	C5H2ClD3N2
4-bromo-3-(methyl-d3)pyridine-2,5,6-d3	2460494-42-0	C6BrD6N
3-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine	2363780-49-6	C11H3BrD12N2
2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-4,5,6-d3-3-amine	2363783-61-1	C11H2D15N3
4-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine	2363783-72-4	C11H3BrD12N2
2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-3,5,6-d3-4-amine	2363782-95-8	C11H2D15N3
2-bromo-4-(4-methylpiperidin-1-yl)pyridine-3,5,6-d3	2363779-50-2	C11H12BrD3N2
6-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-2-amine	2363788-26-3	C11H5D12N3
6-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-3,4,5-d3-2-amine	2363779-73-9	C11H2D15N3
5-bromo-2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridine	2363780-93-0	C11H3BrD12N2
6-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-2,4,5-d3-3-amine	2363786-08-5	C11H2D15N3
2-bromo-5-(2-methylpiperidin-1-yl)pyridine-3,4,6-d3	2363783-25-7	C11H12BrD3N2
2,4-dibromo-3-(methoxy-d3)pyridine	2697162-99-3	C6H2Br2D3NO
6-(difluoromethyl-d)pyridin-2,4,5-d3-3-ol	2697163-00-9	C6HD4F2NO
3-bromo-2-(difluoromethyl-d)-5-(methoxy-d3)pyridine-4,6-d2	2711075-20-4	C7BrD6F2NO
5'-bromo-[2,2'-bipyridin]-3,3',4,4',6,6'-d6-5-ol	2711075-31-7	C10HBrD6N2O
tert-butyl 3-(4-bromopyridin-2-yl)piperidine-1-carboxylate-2,2,3,4,4,5,5,6,6-d9	2768655-38-3	C15H12BrD9N2O2
tert-butyl 3-(2-bromopyridin-4-yl-3,5,6-d3)piperidine-1-carboxylate-2,2,3,4,4,5,5,6,6-d9	2768657-44-7	C15H9BrD12N2O2