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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
1-(2-Chloropyrimidin-4-yl)-1H-imidazole-4-boronic acid pinacol ester	2223055-69-2	C13H16BClN4O2
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	2368224-65-9	C17H15BD12N2O2
5-Bromo-4-amino-2-(3-furyl)pyrimidine	1381936-90-8	C8H6BrN3O
1-(4-Methylpyrimidin-2-yl)-1H-imidazole-4-boronic acid pinacol ester	2223047-55-8	C14H19BN4O2
5-Bromo-2-hydroxy-4-(cyclopropyl)pyrimidine	1381936-04-4	C7H7BrN2O
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	2368224-87-5	C16H14BD12N3O2
5-Amino-4-(2-trifluoromethylphenyl)thiazole	1251201-58-7	C10H7F3N2S
5-Amino-4-(2-pyridyl)thiazole	1368936-96-2	C8H7N3S
2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2368223-15-6	C15H12BD11N2O3
1-(Pyridazin-3-yl)-1H-pyrazole-3-boronic acid pinacol ester	2223037-99-6	C13H17BN4O2
4-Amino-5-ethylthiazole	1374665-71-0	C5H8N2S
4-Bromo-5-(cyclopentyl)thiazole	1264036-28-3	C8H10BrNS
4-bromo-3-(oxetan-3-yloxy)pyridine-2,5,6-d3	2363779-88-6	C8H5BrD3NO2
4-Bromo-5-(4-methoxyphenyl)thiazole	1264035-63-3	C10H8BrNOS
6-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3,5-d2-2-amine	2368223-24-7	C12H14BD5N2O2
5-((oxetan-3-yl-d5)oxy)pyridin-2-amine	2363787-77-1	C8H5D5N2O2
2-((oxetan-3-yl-d5)oxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2364586-85-4	C14H15BD5NO4
2,3-difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-5,6-d2	2368225-16-3	C11H12BD2F2NO2
4-Amino-5-(3-fluorophenyl)thiazole	1368596-15-9	C9H7FN2S
2-bromo-5-(tetrahydrofuran-2-yl)furan	2222935-46-6	C8H9BrO2
4-Bromo-5-(2-furyl)thiazole	1367907-08-1	C7H4BrNOS
4-Amino-5-(3-furyl)thiazole	1374665-75-4	C7H6N2OS
5-Bromo-4-(3-furyl)thiazole	1374665-74-3	C7H4BrNOS
5-Bromo-4-(2-methyl-4-fluorophenyl)thiazole	1374664-67-1	C10H7BrFNS
3-bromo-2-fluoropyridine-4,5,6-d3	2768655-63-4	C5BrD3FN
2-fluoro-3-(methoxy-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-60-5	C12H14BD3FNO3
2-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)pyridine	2368221-64-9	C13H14BD3F3NO2
4-(2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)pyrimidine	2223050-85-7	C14H19BN4O2
1-(N-PROPYL)-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE	2223045-58-5	C11H20BN3O2
4-Chloro-2-(iso-propoxy)pyrimidine-5-boronic acid pinacol ester	2223043-98-7	C13H20BClN2O3
5-fluoro-2-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368225-22-1	C12H14BD3FNO2
4-(3-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl-5-d)pyridine-2,3,5,6-d4	2710289-77-1	C15H12BD8N3O2
4-(cyclopropyl-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710290-51-8	C14H15BD5NO2
2-(cyclopropyl-d5)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2710290-56-3	C14H12BD8NO2
2,4-difluoro-6-(methoxy-d3)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-5-d	2710291-16-8	C12H12BD4F2NO3
2,4-difluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5-d2	2710291-21-5	C11H12BD2F2NO2
5-((oxetan-3-yl-d5)oxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2364585-69-1	C14H12BD8NO4
2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-13-7	C17H15BD12N2O2
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl-2,4,6-d3)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2368224-18-2	C20H21BD11N3O4
2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-32-0	C17H15BD12N2O2
2-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2368224-37-5	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)pyridine-3,4,6-d3	2368224-52-4	C17H12BD15N2O2
2-(4-methylpiperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368224-57-9	C17H24BD3N2O2
2-(4-methylpiperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-4,6-d2	2368224-94-4	C16H24BD2N3O2
3-bromo-4-((oxetan-3-yl-d5)oxy)pyridine-2,5,6-d3	2363789-60-8	C8BrD8NO2
2-bromo-4-(oxetan-3-yloxy)pyrimidine-5,6-d2	2363779-94-4	C7H5BrD2N2O2
4-((oxetan-3-yl-d5)oxy)pyrimidin-5,6-d2-2-amine	2363787-94-2	C7H2D7N3O2
3-bromo-2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridine-4,5,6-d3	2363787-99-7	C11BrD15N2
2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-4-amine	2363785-77-5	C11H5D12N3
4-bromo-2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridine-3,5,6-d3	2363785-47-9	C11BrD15N2
tert-butyl 4-(6-aminopyridin-3-yl-2,4,5-d3)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2222483-77-2	C14H11D11N4O2
tert-butyl 4-(4-aminopyridin-2-yl-3,5,6-d3)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2363781-23-9	C14H11D11N4O2
4-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-2-amine	2363779-47-7	C11H5D12N3
2-bromo-4-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridine	2363783-97-3	C11H3BrD12N2
3-bromo-2-(methoxy-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-4,6-d2	2368221-78-5	C12H12BBrD5NO3
3-(4-(methyl-d3)-1H-pyrazol-1-yl-3,5-d2)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-83-2	C15H15BD5N3O2
4-fluoro-2,3-bis(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-6-d	2304817-52-3	C13H12BD7FNO2
4,6-bis(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-2-d	2368222-92-6
2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368223-14-5	C15H15BD8N2O3
2-((oxetan-3-yl-d5)oxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368223-31-6	C14H12BD8NO4
5-((oxetan-3-yl-d5)oxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2364585-88-4	C14H15BD5NO4
4-Chloro-2-(methylethylamino)pyrimidine-5-boronic acid pinacol ester	2223028-70-2	C13H21BClN3O2
2,2-dimethyl-1-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)morpholino)propan-1-one	2223009-56-9	C15H28BNO4
6-(4-Bromoimidazol-1-yl)pyridine-2-boronic acid pinacol ester	1402233-71-9	C14H17BBrN3O2
6-Bromo-5'-hydroxymethyl-2,2'-bipyridine	223584-21-2	C11H9BrN2O
6-Bromo-4'-acetyl-2,2'-bipyridine	1185315-80-3	C12H9BrN2O
6-Chloro-2-(6'-bromo-2'-pyridyl)pyrazine	1185312-57-5	C9H5BrClN3
2-Amino-4-(6'-bromo-2'-pyridyl)pyrimidine	1185317-15-0	C9H7BrN4
2-Chloro-4-methyl-6-(6'-bromo-2'-pyridyl)pyrimidine	1185308-60-4
4-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2710292-26-3	C14H12BD10NO4
2-((methoxy-d3)methyl-d2)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2710292-54-7	C13H12BD8NO3
2-(methoxymethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2710292-64-9	C13H17BD3NO3
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,5-a]pyridine-1,3,6,7,8-d5	2710293-00-6	C13H12BD5N2O2
2-(methyl-d3)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-5,6-d2-4-amine	2710295-97-7	C12H14BD5N2O2
tert-butyl 4-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-4-yl-3,5,6-d3)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2710294-92-9	C21H21BD12N2O4
2-(tetrahydro-2H-pyran-4-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2710295-18-2	C16H21BD3NO3
5-(tetrahydro-2H-pyran-4-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2710295-33-1	C16H21BD3NO3
3-bromo-2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-4,6-d2	2711075-65-7	C11H12BBrClD2NO2
2-(cyclopropyl-d5)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710290-48-3	C14H15BD5NO2
5-(cyclopropyl-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2710290-53-0	C14H12BD8NO2
1-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	1706754-54-2	C12H15BD3NO3
1-(methyl-d3)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	2710291-56-6	C12H15BD3NO3
2-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2710292-23-0	C14H12BD10NO4
3-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710292-28-5	C14H15BD7NO4
2-((methoxy-d3)methyl-d2)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2710292-49-0	C13H12BD8NO3
6-(2-methylpiperidin-1-yl)pyridin-3,4,5-d3-2-amine	2363779-61-5	C11H14D3N3
6-(3-methylpiperidin-1-yl)pyridin-3,4,5-d3-2-amine	2363785-15-1	C11H14D3N3
5-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyridin-2,4,6-d3-3-amine	2363786-04-1	C11H2D15N3
3-bromo-5-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridine-2,4,6-d3	2363786-19-8	C11BrD15N2
6-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridin-3-amine	2363783-59-7	C11H5D12N3
5-bromo-2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridine	2363789-76-6	C11H3BrD12N2
2-bromo-5-(3-methylpiperidin-1-yl)pyridine-3,4,6-d3	2363789-77-7	C11H12BrD3N2
2-bromo-5-(4-methylpiperidin-1-yl)pyridine-3,4,6-d3	2363785-43-5	C11H12BrD3N2
3-bromo-4-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)pyridine-2,5,6-d3	2363785-59-3	C11BrD15N2
4-(2-methylpiperidin-1-yl)pyridin-2,5,6-d3-3-amine	2363786-85-8	C11H14D3N3
6-amino-4-bromopyridin-3,5-d2-2-ol	2256713-58-1	C5H3BrD2N2O
6-(3-methylpiperidin-1-yl)pyridazin-4,5-d2-3-ol	2363783-48-4	C10H13D2N3O
6-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)pyridazin-3-amine	2363786-41-6	C10H4D12N4
4-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)pyrimidin-5,6-d2-2-amine	2363786-46-1	C10H2D14N4
4-(3-methylpiperidin-1-yl)pyrimidin-5,6-d2-2-amine	2363789-83-5	C10H14D2N4