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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)は同じ種類の鎖式化合物と類似するため，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
2-fluoropyridin-3,5,6-d3-4-ol	2363782-68-5	C5HD3FNO
4-fluoro-2-(methoxy-d3)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5-d2	2710293-05-1	C12H12BD5FNO3
1-(5-bromopyridin-2-yl-3,4,6-d3)piperidin-2,2,3,3,4,5,5,6,6-d9-4-ol	2363786-34-7	C10HBrD12N2O
6-(oxetan-3-yloxy)pyridin-3,4,5-d3-2-amine	2363786-86-9	C8H7D3N2O2
3-bromo-2-chloropyridine-4,5,6-d3	2363789-41-5	C5BrClD3N
5-((oxetan-3-yl-d5)oxy)pyridin-3,4,6-d3-2-amine	2363784-03-4	C8H2D8N2O2
1-(6-bromopyridin-3-yl-2,4,5-d3)piperidin-2,2,3,3,4,5,5,6,6-d9-4-ol	2363788-36-5	C10HBrD12N2O
1-(6-bromopyridazin-3-yl-4,5-d2)piperidin-2,2,3,3,4,5,5,6,6-d9-4-ol	2363781-75-1	C9HBrD11N3O
2-bromo-4-((oxetan-3-yl-d5)oxy)pyridine-3,5,6-d3	2363786-93-8	C8BrD8NO2
2-(2-methylpiperidin-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368224-08-0	C17H24BD3N2O2
4-fluoro-2-methoxypyridine-3,5,6-d3	2256713-37-6	C6H3D3FNO
3-bromo-4-chloropyridine-2,5,6-d3	2363787-37-3	C5BrClD3N
4-(3-methylpiperidin-1-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368224-29-5	C17H24BD3N2O2
3-bromo-6-(oxetan-3-yloxy)pyridazine-4,5-d2	2363789-61-9	C7H5BrD2N2O2
5-bromo-2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)pyridine	2363783-47-3	C9H3BrD8N2O
2-((oxetan-3-yl-d5)oxy)pyrimidin-4-amine	2363787-53-3	C7H4D5N3O2
tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2710294-87-2	C21H24BD9N2O4
3-bromo-5-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)pyridine-2,4,6-d3	2363788-47-8	C9BrD11N2O
2-((oxetan-3-yl-d5)oxy)pyridin-4,5,6-d3-3-amine	2363782-54-9	C8H2D8N2O2
2-(oxetan-3-yloxy)pyridin-3,5,6-d3-4-amine	2363789-57-3	C8H7D3N2O2
4-bromo-3-((oxetan-3-yl-d5)oxy)pyridine	2363787-20-4	C8H3BrD5NO2
4-bromo-3-((oxetan-3-yl-d5)oxy)pyridine-2,5,6-d3	2363782-19-6	C8BrD8NO2
4-((oxetan-3-yl-d5)oxy)pyridin-3-amine	2363782-88-9	C8H5D5N2O2
6-((oxetan-3-yl-d5)oxy)pyridazin-3-amine	2363781-85-3	C7H4D5N3O2
2-bromo-4-((oxetan-3-yl-d5)oxy)pyrimidine	2363789-10-8	C7H2BrD5N2O2
5-bromo-2-((oxetan-3-yl-d5)oxy)pyrimidine	2363781-93-3	C7H2BrD5N2O2
2-(2-methylpiperidin-1-yl)pyridin-4,5,6-d3-3-amine	2363783-52-0	C11H14D3N3
3-bromo-2-(3-methylpiperidin-1-yl)pyridine-4,5,6-d3	2363785-37-7	C11H12BrD3N2
2-(2-methylpiperidin-1-yl)pyridin-3,5,6-d3-4-amine	2363785-93-5	C11H14D3N3
4-bromo-2-(3-methylpiperidin-1-yl)pyridine-3,5,6-d3	2363780-53-2	C11H12BrD3N2
tert-butyl 4-(5-aminopyridin-3-yl-2,4,6-d3)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2363788-13-8	C14H11D11N4O2
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2710295-08-0	C21H24BD9N2O4
4-(tetrahydro-2H-pyran-4-yl-3,3,4,5,5-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710295-23-9	C16H19BD5NO3
2-(tetrahydro-2H-pyran-4-yl-3,3,4,5,5-d5)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2710295-28-4	C16H16BD8NO3
4-(methoxy-d3)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2,5,6-d3	2710297-36-0	C12H12BD6NO3
2-(difluoromethyl-d)-5-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710297-80-4	C13H14BD4F2NO3
2-(difluoromethyl)-5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,6-d2	2710297-85-9	C13H16BD2F2NO2
3-(2-methylpiperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2,4,6-d3	2368224-42-2	C17H24BD3N2O2
3-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-47-7	C17H15BD12N2O2
5-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-62-6	C17H15BD12N2O2
5-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368224-67-1	C17H12BD15N2O2
2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-4,6-d2	2368224-89-7	C16H12BD14N3O2
2-chloro-3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-4,6-d2	2368225-19-6	C11H12BClD2FNO2
2-bromo-4,6-dichloropyridine-3,5-d2	2460493-85-8	C5BrCl2D2N
5-chloro-2,3-difluoropyridine-4,6-d2	2460500-91-6	C5ClD2F2N
5-bromo-2-chloro-3-fluoropyridine-4,6-d2	2460490-55-3	C5BrClD2FN
4-bromo-2-(1H-imidazol-2-yl-4,5-d2)pyridine	2256713-82-1	C8H4BrD2N3
4-bromo-2-(difluoromethyl-d)pyridine-3,5,6-d3	2460490-59-7	C6BrD4F2N
5-bromo-2-(trifluoromethyl)pyridine-3,4,6-d3	2460490-04-2
4-(trifluoromethyl)pyridin-2(1H)-one-3,5,6-d3	2460490-67-7	C6HD3F3NO
2-bromo-4-chloro-6-fluoropyridine-3,5-d2	2460494-27-1	C5BrClD2FN
2-chloro-4,5-bis(methyl-d3)pyridine-3,6-d2	2460491-59-0	C7ClD8N
6-(methyl-d3)pyridin-3,4,5-d3-2-ol	916979-14-1	C6HD6NO
3,4-bis(methyl-d3)pyridin-2(1H)-one-5,6-d2	2460501-15-7	C7HD8NO
2-((oxetan-3-yl-d5)oxy)pyrimidin-4,6-d2-5-amine	2363788-00-3	C7H2D7N3O2
2-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridin-4,5,6-d3-3-amine	2363779-37-5	C11H2D15N3
3-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine-4,5,6-d3	2363782-67-4	C11BrD15N2
2-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridin-3,5,6-d3-4-amine	2363788-05-8	C11H2D15N3
4-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine-3,5,6-d3	2363783-96-2	C11BrD15N2
4-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-2-amine	2363783-14-4	C11H5D12N3
tert-butyl 3-(5-bromopyridin-3-yl-2,4,6-d3)piperidine-1-carboxylate-2,2,3,4,4,5,5,6,6-d9	2768657-77-6	C15H9BrD12N2O2
tert-butyl 3-(2-aminopyridin-4-yl-3,5,6-d3)piperidine-1-carboxylate-2,2,3,4,4,5,5,6,6-d9	2768655-75-8	C15H11D12N3O2
tert-butyl 3-(2-aminopyridin-4-yl)piperidine-1-carboxylate-2,2,3,4,4,5,5,6,6-d9	2768655-58-7	C15H14D9N3O2
2-bromo-4-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridine-3,5,6-d3	2363781-32-0	C11BrD15N2
4-(4-methylpiperidin-1-yl)pyridin-3,5,6-d3-2-amine	2363780-77-0	C11H14D3N3
6-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-2-amine	2363784-17-0	C11H5D12N3
3-bromo-5-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridine	2363783-27-9	C11H3BrD12N2
3-bromo-5-(4-methylpiperidin-1-yl)pyridine-2,4,6-d3	2363781-44-4	C11H12BrD3N2
6-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-3-amine	2363785-23-1	C11H5D12N3
5-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine-3,4,6-d3	2363786-49-4	C11BrD15N2
5-(2-methylpiperidin-1-yl)pyridin-3,4,6-d3-2-amine	2363781-55-7	C11H14D3N3
3-bromo-4-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine	2363779-95-5	C11H3BrD12N2
4-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridin-2,5,6-d3-3-amine	2363779-72-8	C11H2D15N3
3-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine-2,5,6-d3
1-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydropyridine-2,2,3,3,4,4,6-d7
tert-butyl 2-oxo-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-1(2H)-carboxylate-3,4,5-d3
7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-a]pyridine-2,3,5,6,8-d5
3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine-2,4,5,6-d4
4-(methyl-d3)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine-3,6-d2
3-(1-(methyl-d3)pyrrolidin-2-yl-2,3,3,4,4,5,5-d7)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
2-bromo-5-(methyl-13C)furan	1227960-16-8	C5H5BrO
5-bromo-4-fluoro-2,3-bis(methyl-d3)pyridine-6-d	2294947-06-9	C7BrD7FN
2,2'-dichloro-5,5'-bipyrimidine-4,4',6,6'-d4	2697155-53-4	C8Cl2D4N4
2,5-bis(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,6-d2	2710289-62-4	C13H12BD8NO2
8-(methyl-d3)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-b]pyridazine-2,3,7-d3	2710291-08-8	C13H12BD6N3O2
1-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one-3,4,6-d3	2710291-23-7	C12H12BD6NO3
2,6-bis(methyl-d3)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-4,5-d2	2710291-51-1	C13H12BD8NO2
N-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3,5,6-d3-2-amine	2710291-84-0	C12H16BD3N2O2
2-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710292-07-0	C14H15BD7NO4
2-bromo-5-(cyclopropyl-d5)pyridine	2600399-44-6	C8H3BrD5N
4-(cyclopropyl-d5)pyridin-2-ol	2600400-62-0	C8H4D5NO
6-(cyclopropyl-d5)pyridin-2,4,5-d3-3-amine	2600398-95-4	C8H2D8N2
6-(methyl-d3)pyrimidine-2,4(1H,3H)-dione-5-d	2600399-75-3	C5H2D4N2O2
2-(4-bromo-3-(methyl-d3)-1H-pyrazol-1-yl-5-d)pyridine-3,4,5,6-d4	2460493-87-0	C9BrD8N3
4-bromo-2-(1H-imidazol-2-yl-4,5-d2)pyrimidine	2256714-03-9	C7H3BrD2N4
1-(6-(methyl-d3)pyridin-3-yl-2,4,5-d3)ethan-1-one-2,2,2-d3	2600399-13-9	C8D9NO
6-(cyclopropyl-d5)pyridin-3-amine	2600400-60-8	C8H5D5N2
3-bromo-5-(cyclopropyl-d5)pyridine	2600400-68-6	C8H3BrD5N
3-bromo-2-(methoxy-d2)pyridine	2891520-51-5	C6H4BrD2NO
2-bromo-3-(methoxy-d2)pyridine-4,5,6-d3	2891512-82-4	C6HBrD5NO