WO2022009911A1 - 1,3-ベンゾジオキソール誘導体の製造方法 - Google Patents
1,3-ベンゾジオキソール誘導体の製造方法 Download PDFInfo
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- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/307—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of halogen; by substitution of halogen atoms by other halogen atoms
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- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
- C07C69/84—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring of monocyclic hydroxy carboxylic acids, the hydroxy groups and the carboxyl groups of which are bound to carbon atoms of a six-membered aromatic ring
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
- C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
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- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
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- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- the present invention relates to a novel method for producing a 1,3-benzodioxole derivative, and more particularly to a production method including a novel chlorination reaction of a benzene ring.
- Patent Document 1 discloses various 1,3-benzodioxole derivatives and methods for producing the same.
- One of the features of the production method disclosed in the document is that a chlorine atom is introduced into the benzene ring using N-chlorosuccinimide (Patent Document 1, Reference Example 2).
- Patent Document 1 discloses various 1,3-benzodioxole derivatives and methods for producing the same.
- One of the features of the production method disclosed in the document is that a chlorine atom is introduced into the benzene ring using N-chlorosuccinimide (Patent Document 1, Reference Example 2).
- a method using a reagent such as chlorine gas
- Non-Patent Document 2 t-BuOCl
- An object of the present invention is to provide a novel method for producing a 1,3-benzodioxole derivative, which comprises a novel chlorination reaction of a benzene ring, which has a high yield and is industrially useful with few impurities. ..
- the present invention relates to the following (1) to (10).
- R is a C 1 -C 6 alkyl group.
- the solvent is a solvent consisting of one or more selected from toluene, acetonitrile, methyl tert-butyl ether, and cyclopentyl methyl ether and water.
- the powder X-ray diffraction pattern of the crystal of the compound produced in Example 7 is shown.
- the vertical axis of the figure shows the diffraction intensity as a relative line intensity, and the horizontal axis shows the value of the diffraction angle 2 ⁇ .
- C 1 -C 6 alkyl group is a straight-chain or branched alkyl group having 1 to 6 carbon atoms, for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, Examples thereof include an isobutyl group, an s-butyl group, a t-butyl group, a pentyl group, an isopentyl group, a 2-methylbutyl group, a neopentyl group, a 1-ethylpropyl group, a hexyl group, an isohexyl group, and a 4-methylpentyl group.
- the "ruthenium catalyst” means a catalyst composed of a compound containing a ruthenium atom and a ligand.
- the compound containing a ruthenium atom include Ru 3 (CO) 12 , [RuCl 2 (CO) 3 ] 2 , Ru (acac) 3 , [RuCl 2 (benzene)], [RuCl 2 (mes)] 2 , and the like.
- [RuCl 2 (p-cym)] 2 , RuCl 2 (1,5-cyclooctadiene) and the like can be mentioned. It is preferably Ru 3 (CO) 12 .
- Examples of the ligand include P (o-Tol) 3 , P (tBu) 3 (HBF), P (2-MeOPh) 3, and the like.
- P (o-Tol) 3 is preferable.
- Preferred combinations of compounds containing ruthenium atoms and ligands include combinations of Ru 3 (CO) 12 and P (o-Tol) 3 .
- the present invention can carry out the reaction using a very small amount of ruthenium catalyst.
- the equivalent of the ruthenium catalyst used is 0.1-10 mol% with respect to the compound of formula (II). It is preferably 0.5 to 5 mol%, and more preferably 1 mol%.
- the equivalent as a ruthenium atom is 0.3 to 30 mol% with respect to the compound of the formula (II). It is preferably 1.5 to 15 mol%, more preferably 3 mol%.
- the "optically active amine” that can be used in the present invention is one that forms a diastereomeric salt with a racemic compound having an acidic group and can be optically resolved by the difference in the solubility of the diastereomeric salt in a solvent.
- a solvent for example, (1S) -1-phenylethaneamine, (2S) -2-amino-3-phenyl-1-propanol and the like can be mentioned. It is preferably (1S) -1-phenylethaneamine.
- the "step of deprotecting the Boc group” and the “step of dimethylating the nitrogen atom” are two-step reactions of deprotecting the Boc group to isolate the intermediate and then dimethylating the nitrogen atom. It also includes a one-pot reaction that dimethylizes nitrogen atoms at the same time as deprotecting the Boc group.
- Reagents that can be used to deprotect the Boc group include, for example, hydrochloric acid, p-toluenesulfonic acid, formic acid, trifluoroacetic acid and the like. Hydrochloric acid is preferable.
- Reagents that can be used to dimethylate nitrogen atoms include, for example, formaldehyde and formic acid, formaldehyde and sodium triacetoxyborohydride. Formaldehyde and formic acid are preferred.
- the solvent that can be used in the present invention may be any one that is inert to each reaction.
- either only an organic solvent or a mixed solution of an organic solvent and water can be used.
- one or more solvents selected from acetonitrile, ethyl acetate, tetrahydrofuran, dimethylacetamide (DMAc), cyclopentyl methyl ether (CPME) and the like can be used.
- it is one or more solvents selected from acetonitrile, ethyl acetate, tetrahydrofuran, and cyclopentyl methyl ether (CPME).
- a mixed solution of an organic solvent and water for example, a mixed solution of one or more selected from toluene, acetonitrile, methyl tert-butyl ether (MTBE), cyclopentyl methyl ether and the like and water can be used.
- MTBE methyl tert-butyl ether
- a mixture of toluene, acetonitrile, and water is preferred.
- a ruthenium catalyst for example, toluene, ⁇ , ⁇ , ⁇ -trifluorotoluene, chlorobenzene, butyl acetate, methyl isobutyl ketone and the like are used. be able to. Toluene is preferred.
- the compound represented by the formula (I), the compound represented by the formula (II), the compound represented by the formula (III), the compound represented by the formula (IV) or a salt thereof, and the compound represented by the formula (V) of the present invention includes all isomers (diastereo isomers, optical isomers, geometric isomers, rotational isomers, etc.).
- the "pharmaceutically acceptable salt” refers to a salt that does not have significant toxicity and can be used as a pharmaceutical composition.
- the compound represented by the formula (IV) and the compound represented by the formula (V) of the present invention can be converted into a salt by reacting with an acid.
- hydrohalogenates such as hydrofluoride, hydrochlorides, hydrobromide, hydroiodide, nitrates, perchlorates, sulfates, inorganic acid salts such as phosphates; benzenesulfonate, ants such as p- toluenesulfonic acid salt - Rusuruhon salt; methanesulfonate, trifluoromethanesulfonate, C 1 -C 6 alkyl sulfonate, such as ethanesulfonic acid salt acetate , Organic acid salts such as apple acid salt, fumarate, succinate, citrate, ascorbate, tartrate, oxalate, adipate; and glycine, lysine, arginine, Amino acid salts such as ornithine salts, glutamates, asparaginates can be mentioned.
- the compound represented by the formula (I), the compound represented by the formula (II), the compound represented by the formula (III), the compound represented by the formula (IV) or a salt thereof, and the compound represented by the formula (V) of the present invention may take up water molecules and become a hydrate by being left in the air or recrystallized, and such a hydrate is also included in the present invention.
- the compound represented by the formula (I), the compound represented by the formula (II), the compound represented by the formula (III), the compound represented by the formula (IV) or a salt thereof, and the compound represented by the formula (V) of the present invention may absorb a certain solvent and become a solvent by being left in a solvent or recrystallized, and such a solvent is also described in the present invention. Included.
- the reaction conditions of the present invention should not be construed as being limited to these.
- the functional groups of the compound may be protected by an appropriate protecting group. Examples of such functional groups include hydroxyl groups, carboxy groups, amino groups and the like, and the types of protecting groups and the conditions for introducing and removing those protecting groups are described in, for example, Protective Groups in Organic Synthesis (T.D.). W. Green and PGM Wuts, John Wiley & Sons, Inc., New York, 2006) can be referred to.
- the nuclear magnetic resonance (hereinafter, 1 H NMR: 500 MHz) spectrum is described with a chemical shift value of ⁇ value (ppm) using tetramethylsilane as a standard substance.
- the split pattern is s for single line, d for double line, t for triple line, q for quadruple line, m for multiple line, and br for broad.
- HPLC 10A SHIMADZU
- ACQUITY UPLC H-Class WATERS
- the equipment and measurement conditions in the powder X-ray diffraction measurement in the examples are as follows.
- Acetone (66 L) and a 9 wt% ammonium chloride aqueous solution (1210 kg) were added dropwise while keeping the temperature below 20 ° C., and the mixture was stirred at 20-25 ° C. for 1 hour. Further, ethyl acetate (550 L) was added, the aqueous layer was discarded, and the organic layer was concentrated to 550 L. Ethyl acetate (1650 L) and 9 wt% ammonium chloride aqueous solution (605 kg) were added to the residue, and after stirring, the aqueous layer was discarded, and further 9 wt% ammonium chloride aqueous solution (605 kg) and 9% sodium chloride aqueous solution (605 kg) were added.
- Activated carbon (0.86 kg) was added to the filtrate and the mixture was stirred for 30 minutes.
- the activated carbon was removed by filtration, and the activated carbon was washed with 70% aqueous 2-propanol solution (51 L).
- the filtrate was concentrated under reduced pressure until the volume reached 103 L, and 2-propanol (171 L) was added.
- the mixture was concentrated again under reduced pressure until the liquid volume reached 103 L, then 2-propanol (171 L) was added, and the mixture was stirred for 1 hour or more. Precipitation of the solid was confirmed, and the mixture was concentrated until the liquid volume reached 103 L.
- Example 1-2 Examination of chlorination conditions 1 Since the compound (1) which is a raw material and the compound (4) which is a by-product of the reaction are difficult to remove even in a later step, it is necessary to control the residual and formation in the reaction. Therefore, using compound (1) as a raw material, chlorination was examined by the same method as in Example 1-1. The results are shown in Table 1.
- HPLC condition detection 220 nm
- Example 1-3 Examination of chlorination conditions 2 Using compound (1) as a raw material and sulfuryl chloride as a chlorination reagent, chlorination in various solvents was investigated. The results are shown in Table 3.
- Methyl (2RS) -2- ⁇ trans-4-[(tert-butoxycarbonyl) amino] cyclohexyl ⁇ -7-chloro-2,4-dimethyl-1,3-benzodioxol obtained in Example 2 Methanol (9.0 L), 1,2-dimethoxyethane (3.6 L), 5 mol / L sodium hydroxide aqueous solution (equivalent to 13 L, 7.83 mol) in a toluene solution of -5-carboxylate (equivalent to 13.3 mol). 2.50 L, 12.5 mol) was added, and the mixture was stirred at 55-65 ° C. for 3 hours.
- 1,2-dimethoxyethane (21.6 L) was added to the organic layer, concentrated under reduced pressure to 9 L, then 1,2-dimethoxyethane (21.6 L) was added, and the mixture was heated to 50-60 ° C. After that, filtration was performed to remove inorganic substances. Then, after washing with 1,2-dimethoxyethane (1.8 L), the mixture was concentrated under reduced pressure to 21.6 L to obtain a 1,2-dimethoxyethane solution of the title compound (quantitative value: 89.6% (Example 2). (Total yield from), equivalent to 7.45 mol) was obtained.
- Step 1 1,2-Dimethoxyethane (200 L), (1S) -1-phenylethaneaminium (2R) -2- ⁇ trans-4-[(tert-butoxycarbonyl) amino] cyclohexyl ⁇ in a reaction vessel under a nitrogen atmosphere.
- 35% hydrochloric acid 36.7 kg, 352 mol was added dropwise in 7 portions, and the mixture was stirred for 3 hours after the addition.
- Step 2 1,2-Dimethoxyethane (115 L), (2R) -2- (trans-4-aminocyclohexyl) -7-chloro-2,4-dimethyl-1,3-benzodioki in a reaction vessel under a nitrogen atmosphere.
- Sole-5-carboxylic acid trihydrate (57.63 kg equivalent, 152 mmol)
- formic acid 34.92 kg, 759 mol
- 37% formaldehyde aqueous solution 93.59 kg, 1153 mol
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Abstract
Description
特許文献1において、種々の1,3-ベンゾジオキソール誘導体およびその製造方法が開示されている。当該文献に開示されている製造方法の特徴の一つとして、N-クロロスクシンイミドを用いてベンゼン環に塩素原子を導入している点が挙げられる(特許文献1、参考例2)。その他ベンゼン環に塩素原子を導入する方法としては、塩素ガス(非特許文献1)やt-BuOClのような試薬を用いる方法が知られている(非特許文献2)。しかし、これまで塩化スルフリルを用い、高収率かつ不純物が少ない形で塩素化反応は知られていなかった。
式(II):
[式(I)および式(II)中、Rは、C1-C6アルキル基を示す。]
式(III):
[式(III)中、Rは、(1)に記載のものと同義である。]
(i)加水分解する工程、
(ii)光学活性アミンを用いて光学分割を行なう工程、
(iii)Boc基を脱保護する工程、および
(iv)窒素原子をジメチル化する工程
を包含する
式(IV):
式(V):
配位子としては、例えば、P(o-Tol)3、P(tBu)3(HBF)、およびP(2-MeOPh)3等が挙げられる。好ましくは、P(o-Tol)3である。
ルテニウム原子を含む化合物と配位子の好ましい組み合わせとしては、Ru3(CO)12およびP(o-Tol)3の組み合わせがあげられる。
Boc基を脱保護するのに用いることのできる試薬としては、例えば、塩酸、p-トルエンスルホン酸、ギ酸、およびトリフルオロ酢酸等があげられる。好ましくは塩酸である。窒素原子をジメチル化するのに用いることのできる試薬としては、例えば、ホルムアルデヒドおよびギ酸、ホルムアルデヒドおよびナトリウムトリアセトキシボロヒドリド等があげられる。好ましくはホルムアルデヒドおよびギ酸である。
mg:ミリグラム,g:グラム,kg:キログラム,mL:ミリリットル,L:リットル,MHz:メガヘルツ, rt:室温,ND:未検出。
機種: Rigaku Rint TTR-III
試料: 適量
X線発生条件: 50 kV, 300 mA
波長: 1.54 Å (銅のKα線)
測定温度:室温
走査速度: 20°/min
走査範囲: 2~40°
サンプリング幅: 0.02°
1H NMR(500 MHz,CDCl3):δ4.37(br,1H),4.11(q,J=2.8Hz,2H),3.41(br,1H),2.20(tt,J=4.8,1.4 Hz,1H),2.07(m,2H),2.00(m,2H),1.52(dq,J=4.6,1.4Hz,2H),1.44(s,9H),1.24(t,J=2.8Hz,3H),1.11(dq,J=4.6,1.4 Hz,2H)
1HNMR(500MHz,CDCl3):δ4.37(br,1H),3.45(d,J=2.2Hz,2H),3.38(br,1H),2.04(m,2H),
1.84(m,2H),1.44(m,10H),1.28-1.31(m,1H),1.00-1.13(m,4H)
窒素雰囲気下、反応容器に酢酸エチル(50 L)、tert-ブチル=[trans-4-(ヒドロキシメチル)シクロヘキシル]カルバマート(2.5 kg、10.90 mol)、臭化カリウム(39.3 g、0.33 mol)、2,2,6,6-テトラメチルピペリジン 1-オキシル(51.1 g、0.33 mol)、4.8%炭酸水素ナトリウム水溶液(26.25 kg)を加え0-5℃に冷却し、9.9%次亜塩素酸ナトリウム(8.62 kg、11.45 mol)を5℃以下で添加し、さらに0℃で4時間撹拌した。混合物に亜硫酸ナトリウム(250 g)を加え、0-5℃で30分撹拌した後、20-25℃に加温した。その後、水層を廃棄し20%塩化ナトリウム水溶液(12.5 kg)で洗浄した後、有機層を硫酸ナトリウムで乾燥し、7.5 Lまで濃縮した。残渣に酢酸エチル(12.5 L)を添加し、再び7.5 Lまで濃縮し、tert-ブチル=(trans-4-ホルミルシクロヘキシル)カルバマート溶液として次反応に用いた。
窒素雰囲気下、反応容器にテトラヒドロフラン(30 L)、トリフェニルホスフィン(5.72 kg、21.8 mol)を加え40℃に加温して5分撹拌した。四臭化炭素(3.61 kg、10.9 mol)を30分かけて添加し、さらに40-45℃で30分撹拌した。tert-ブチル=(trans-4-ホルミルシクロヘキシル)カルバマート溶液とトリエチルアミン(2.54 kg、25.1 mol)の混液を45℃未満で20分かけて添加し、40℃でさらに15時間撹拌した。反応液を0℃に冷却した後、水(0.2 L)を10℃以下で添加し、さらに水(25 L)を添加した。20-25℃に加温した後に水層を廃棄し、酢酸エチル(4.5 kg)と10%塩化ナトリウム水溶液(25 kg)を添加して撹拌後、再び水層を廃棄した。得られた有機層を15 Lまで濃縮した後、2-プロパノール(19.65 kg)を添加し17.5 Lまで濃縮した。残渣に2-プロパノール(11.78 kg)と5 mol/L塩酸(151.6 g)を添加し、25-35℃で2.5時間撹拌した。得られた溶液に水(16.8 L)を滴下し、20-25℃で30分撹拌した後、0℃で2時間撹拌した。析出した固体を濾取し、0-5℃に冷却したアセトニトリル:水 60:40の混合物(11 kg)で洗浄し、40℃で減圧乾燥することで標記化合物を3.05 kg(収率73.0%)で取得した。
1HNMR(500MHz,CDCl3):δ6.20(d,J=3.6Hz,1H),4.37(br,1H),3.38(br,1H),2.21(dtt,J=3.6,4.6,1.4Hz,1H),2.05-2.00(m,2H),1.80-1.83(m,2H),1.44(s,9H),1.23(ddd,J=9.9,5.3,1.2 Hz,2H), 1.13(ddt,J=4.6,1.4,5.2 Hz,2H)
1HNMR(500MHz,CDCl3):δ4.36(br,1H),3.43(br,1H),2.18-2.23(m,1H),1.97-2.04(m,5H), 1.44-1.56(m,11H),1.06-1.14(m,2H)
1H NMR(500 MHz,DMSO-d6):δ2.22(s,3H),2.30(s,3H),6.16(s,1H),12.3(brs, 1H)
1H NMR(500 MHz,methanol-d4):δ2.27(s,3H),2.30(s,3H),4.02(s,2H),6.16(s,1H)
1H NMR(500 MHz,methanol-d4):δ2.41(s,3H),3.82(s,3H),7.41(s,1H)
原料である化合物(1)および、反応の副生成物である化合物(4)は後の工程においても除去が困難なため、反応における残存、生成を制御する必要がある。そこで化合物(1)を原料として、実施例1-1と同様の方法にてクロル化の検討を行った。結果を表1に示す。
検出:220 nm
カラム:ACQUITY UPLC BEH C18 (2.1 mm IDx50 mm,1.7 μm,Waters)
カラム温度:40°C
移動相:A:0.1vol%トリフルオロ酢酸水溶液、B:アセトニトリル
グラジエント条件:
注入量:1 μL
試料溶解液:アセトニトリル/水(1:1)
ウォッシュ溶液:アセトニトリル/水(1:1)
パージ溶液:アセトニトリル/水(1:1)
シールウォッシュ溶液:アセトニトリル/水(1:1)
サンプルクーラー温度:なし
測定時間:5分
面積測定時間:約0.5分-4.0分
Comp.1:1.11 min, Comp.2:1.55 min,
Comp.3:1.44 min, Comp.4:1.70 min
化合物(1)を原料とし、クロル化試薬として塩化スルフリルを用い、各種溶媒中でのクロル化の検討を行った。結果を表3に示す。
1HNMR(500MHz,methanol-d4):δ1.15-1.23(m,2H), 1.28-1.35(m,2H), 1.42(s,9H),
1.59(s,3H),1.60-1.61(d,3H,J=7.0Hz,3H),1.80-1.86(dt,J=12.0,3.0Hz,1H),1.95-1.96(m,4H), 2.27(s,3H),3.24-3.28(m,1H),4.39-4.43(q,J=7.0Hz,1H),7.07(s,1H),7.37-7.45(m,5H)
窒素雰囲気下、反応容器に1,2-ジメトキシエタン(200 L)、(1S)-1-フェニルエタンアミニウム (2R)-2-{trans-4-[(tert-ブトキシカルボニル)アミノ]シクロヘキシル}-7-クロロ-2,4-ジメチル-1,3-ベンゾジオキソール-5-カルボキシラート(87.64 kg相当量、160 mol)、35%塩酸(16.7 kg、160 mol)を添加し、45-55℃に加熱した後、35%塩酸(36.7 kg、352 mol)を7分割して滴下し、滴下後3時間攪拌した。室温まで冷却後、反応液を水(982 L)および5 mol/L水酸化ナトリウム(166.34 kg、702 mol)の混液に添加した。得られた溶液に30℃で3 mol/L塩酸(22.4 kg)を滴下し結晶析出を確認し、30分以上撹拌した後、10℃に冷却しさらに2時間撹拌した。撹拌後、さらに10℃で3 mol/L塩酸(95.1 kg)を滴下し、pHを7.0へ調整した。スラリー液を濾取し、10℃に冷却した水(293 L)で洗浄し、(2R)-2-(trans-4-アミノシクロヘキシル)-7-クロロ-2,4-ジメチル-1,3-ベンゾジオキソール-5-カルボン酸 三水和物を(57.63 kg(乾燥体換算)、収率94.7%)で取得した。
1H NMR(500 MHz,methanol-d4+D2O):1.32-1.44(m,4H),1.61(s,3H),1.89-1.94(m,1H),2.01-2.13(m,4H),2.27(s,3H),2.99-3.07(m,1H),7.06(s,3H)
窒素雰囲気下、反応容器に1,2-ジメトキシエタン(115 L)、(2R)-2-(trans-4-アミノシクロヘキシル)-7-クロロ-2,4-ジメチル-1,3-ベンゾジオキソール-5-カルボン酸 三水和物(57.63 kg相当量、152 mmol)、ギ酸(34.92 kg、759 mol)、37%ホルムアルデヒド水溶液(93.59 kg、1153 mol)を加え、55-65℃で2時間攪拌した。室温まで冷却し、2-プロパノール(864 L)を添加し、576 Lまで減圧濃縮した。そこに2-プロパノール(231 L)を添加し、再び576 Lまで減圧濃縮し、さらに2-プロパノール(231 L)を添加し、576 Lまで減圧濃縮した。濃縮後、35%塩酸(20.40 kg、196 mol)を2時間かけて滴下し、室温で30分攪拌した。得られたスラリー液に酢酸エチル(576 L)を30分かけて添加し、692 Lになるまで濃縮した。酢酸エチルを(461 L)添加した後、さらに519 Lになるまで濃縮した。残渣に酢酸エチルを(634 L)添加し、室温で2時間攪拌し、析出した固体を濾取し、酢酸エチル(491 L)で洗浄し40℃で減圧乾燥することで標記化合物を(51.56 kg、収率87.1%)で取得した。
1H NMR(500 MHz,methanol-d4):δ1.38-1.47(m,2H),1.53-1.61(m,2H),1.67(s,3H),1.99-2.05(m,1H),2.13-2.18(m,4H),2.38(s,3H),2.84(s,6H), 3.19-3.25(dt,J=12.5,3.5Hz,1H),
7.53(s,1H)
1HNMR(500MHz,methanol-d4):δ1.35-1.43(m,2H),1.49-1.57(m,2H),1.62(s,3H),
1.94-2.00(dt,J=12.5,3.0Hz,1H),2.09-2.13(m,4H),2.17(s,3H),2.24(s,3H), 2.35(s,3H),2.36(s,3H),2.82(s,6H), 3.16-3.22(dt,J=12.0,3.5Hz,1H),4.42(s,2H),
6.10(s,1H),6.89(s,1H), 7.22-7.24(d,J=8.0 Hz,2H),7.69-7.71(dt,J=8.0,1.5 Hz,2H)
*種晶作成法
窒素雰囲気下、反応容器に2-プロパノール(79.0 L)、および取得した標記化合物の粗体(7.90 kg)を添加し攪拌した。精製水(7.9 L)を添加し固体を完溶させ、さらに活性炭(0.40 kg)を添加し攪拌した。活性炭をろ過後、2-プロパノール(79.0 L)で洗浄し、58 Lまで濃縮した。残渣に2-プロパノール(5 L)を添加し、64℃まで加温後、tert-ブチルメチルエーテル(19.8 L)を添加し、結晶析出を確認後、さらにtert-ブチルメチルエーテル(75.1 L)を3回にわけて添加した。その際、添加ごとに30分撹拌した。室温まで冷却後、析出した固体を濾取、2-プロパノール(7.9 L)およびtert-ブチルメチルエーテル(15.8 L)の混液で洗浄し、40℃で減圧乾燥することで種晶となる標記化合物を(7.08 kg、収率89.6%)で得た。
Claims (10)
- 溶媒が、トルエン、アセトニトリル、メチルtert-ブチルエーテル、およびシクロペンチルメチルエーテルから選ばれる1種以上および水からなる溶媒である、請求項1に記載の製造方法。
- 溶媒が、トルエン、アセトニトリル、および水からなる溶媒である、請求項1または2に記載の製造方法。
- 溶媒が、アセトニトリル、酢酸エチル、テトラヒドロフラン、ジメチルアセトアミド、およびシクロペンチルメチルエーテルから選ばれる1種以上の溶媒である、請求項1に記載の製造方法。
- ルテニウム触媒が、Ru3(CO)12、およびP(o-Tol)3からなる触媒である、請求項5に記載の製造方法。
- Rがメチル基である、請求項1から6のいずれか1項に記載の製造方法。
- 光学活性アミンが(1S)-1-フェニルエタンアミンである、請求項8に記載の製造方法。
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CA3185274A CA3185274A1 (en) | 2020-07-08 | 2021-07-07 | Method for producing 1,3-benzodioxole derivative |
US18/012,090 US20230257368A1 (en) | 2020-07-08 | 2021-07-07 | Method for producing 1,3-benzodioxole derivative |
JP2022535364A JPWO2022009911A1 (ja) | 2020-07-08 | 2021-07-07 | |
BR112022026641A BR112022026641A2 (pt) | 2020-07-08 | 2021-07-07 | Método de produção |
CN202180046125.6A CN116018335A (zh) | 2020-07-08 | 2021-07-07 | 用于制备1,3-苯并二氧杂环戊烯衍生物的方法 |
KR1020227040350A KR20230037488A (ko) | 2020-07-08 | 2021-07-07 | 1,3-벤조디옥솔 유도체의 제조 방법 |
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JP2007161674A (ja) * | 2005-12-16 | 2007-06-28 | Tanabe Seiyaku Co Ltd | ピペリジン化合物およびその製法 |
JP2010512366A (ja) * | 2006-12-11 | 2010-04-22 | ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Mch拮抗活性を有する新規ピリダジン誘導体及びこれらの化合物を含む薬物 |
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BR112022026641A2 (pt) | 2023-02-07 |
CN116018335A (zh) | 2023-04-25 |
KR20230037488A (ko) | 2023-03-16 |
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