Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities
Cas:57-47-6
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:57-47-6
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:57-47-6
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd
1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:57-47-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medicine)
Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
Cas:57-47-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1.strict raw material selection 2.mature production process 3.perfect quality control system 4.intimate servcie 5.competitive price 6.downstream customization 7.has a number of highly qualified engineers and experts to provide guida
Cas:57-47-6
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
PHYSOSTIGMINE CAS 57-47-6 Purity: 99% Min Application: Intermediates Appearance: Powder Package: Bag Delivery: 3-5days Our Advantage & Service 1.Top quality: Using high quality material and establishing a strict quality control syste
Cas:57-47-6
Min.Order:1 Kilogram
FOB Price: $10.0 / 50.0
Type:Trading Company
inquiryEstablished in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site
GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Hangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
Cas:57-47-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:57-47-6
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:API
Cas:57-47-6
Min.Order:0
Negotiable
Type:Trading Company
inquiryHangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quality in your re
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:57-47-6
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.Appearanc
Our own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin
Factory supply high purity low priceAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
Pyrrolo[2,3-b]indol-5-ol,1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethyl-, 5-(N-methylcarbamate), (3aS,8aR)- cas 57-47-6Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transport
Cas:57-47-6
Min.Order:0
Negotiable
Type:Other
inquiry*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Use in healthcare products. Use in food products. Use in Cosmetic p
Conditions | Yield |
---|---|
With sodium tetrahydroborate; triethylamine 1.) MeOH, room temperature, 2 h, 2.) room temperature, 0.5 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran | |
With sodium hydride In diethyl ether Yield given; | |
Stage #1: eseroline With sodium In diethyl ether at 20℃; Stage #2: methyl isocyanate In diethyl ether at 20℃; | |
With sodium In diethyl ether at 20℃; |
Conditions | Yield |
---|---|
With sodium; boron tribromide Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With alkaline methanol |
Conditions | Yield |
---|---|
With diethyl ether; sodium; benzene |
Physostigmin
Conditions | Yield |
---|---|
With ethanol; acetic acid; zinc |
Conditions | Yield |
---|---|
at 100℃; im Rohr; |
2-iodo-4-methoxy-N-methylaniline
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 55 percent / DCC, HOBT / tetrahydrofuran / Heating 2: 94 percent / Pd2(dba)3*CHCl3, (S)-BINAP, 1,2,2,6,6-pentamethylpiperidine / N,N-dimethyl-acetamide / 1.5 h / 100 °C 3: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 4: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 5: BBr3 / CH2Cl2 / 23 °C 6: NaH / diethyl ether View Scheme |
(Z)-2-Methyl-4-triisopropylsilanyloxy-but-2-enoic acid
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 55 percent / DCC, HOBT / tetrahydrofuran / Heating 2: 94 percent / Pd2(dba)3*CHCl3, (S)-BINAP, 1,2,2,6,6-pentamethylpiperidine / N,N-dimethyl-acetamide / 1.5 h / 100 °C 3: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 4: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 5: BBr3 / CH2Cl2 / 23 °C 6: NaH / diethyl ether View Scheme | |
Multi-step reaction with 7 steps 1: 84 percent / Et3N / CH2Cl2 / 0.5 h / Ambient temperature 2: 80 percent / 4 h / 60 °C 3: 94 percent / Pd2(dba)3*CHCl3, (S)-BINAP, 1,2,2,6,6-pentamethylpiperidine / N,N-dimethyl-acetamide / 1.5 h / 100 °C 4: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 5: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 6: BBr3 / CH2Cl2 / 23 °C 7: NaH / diethyl ether View Scheme | |
Multi-step reaction with 5 steps 1: 1.) BOP, Et3N / 1.) CH2Cl2, 2.) 60 deg C 2: 1,2,2,6,6-pentamethylpiperidine / 20percent Pd-(S)-BINAP / N,N-dimethyl-acetamide / 100 °C 3: 3N aq. HCl / 23 °C 4: 1.) Et3N, MgSO4, 2.) LiAlH4 / 2.) THF, reflux 5: 1.) BBr3, 2.) Na View Scheme |
(Z)-2-Methyl-4-triisopropylsilanyloxy-but-2-enoic acid (2-iodo-4-methoxy-phenyl)-methyl-amide
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 94 percent / Pd2(dba)3*CHCl3, (S)-BINAP, 1,2,2,6,6-pentamethylpiperidine / N,N-dimethyl-acetamide / 1.5 h / 100 °C 2: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 3: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 4: BBr3 / CH2Cl2 / 23 °C 5: NaH / diethyl ether View Scheme | |
Multi-step reaction with 4 steps 1: 1,2,2,6,6-pentamethylpiperidine / 20percent Pd-(S)-BINAP / N,N-dimethyl-acetamide / 100 °C 2: 3N aq. HCl / 23 °C 3: 1.) Et3N, MgSO4, 2.) LiAlH4 / 2.) THF, reflux 4: 1.) BBr3, 2.) Na View Scheme |
(3S)-(5-methoxy-1,3-dimethyl-2-oxo-2,3-dihydro-1H-indol-3-yl)acetaldehyde
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 2: BBr3 / CH2Cl2 / 23 °C 3: NaH / diethyl ether View Scheme | |
Multi-step reaction with 2 steps 1: 1.) Et3N, MgSO4, 2.) LiAlH4 / 2.) THF, reflux 2: 1.) BBr3, 2.) Na View Scheme |
(S)-5-Methoxy-1,3-dimethyl-3-((E)-2-triisopropylsilanyloxy-vinyl)-1,3-dihydro-indol-2-one
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 2: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 3: BBr3 / CH2Cl2 / 23 °C 4: NaH / diethyl ether View Scheme | |
Multi-step reaction with 3 steps 1: 3N aq. HCl / 23 °C 2: 1.) Et3N, MgSO4, 2.) LiAlH4 / 2.) THF, reflux 3: 1.) BBr3, 2.) Na View Scheme |
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 80 percent / 4 h / 60 °C 2: 94 percent / Pd2(dba)3*CHCl3, (S)-BINAP, 1,2,2,6,6-pentamethylpiperidine / N,N-dimethyl-acetamide / 1.5 h / 100 °C 3: 80 percent / 3M aq. HCl / tetrahydrofuran / Ambient temperature 4: 1.) Et3N, MgSO4, 2.) LiAlH4 / 1.) THF, RT, overnight, 2.) THF, reflux, 1.5 h 5: BBr3 / CH2Cl2 / 23 °C 6: NaH / diethyl ether View Scheme |
(-)-esermethole
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: BBr3 / CH2Cl2 / 23 °C 2: NaH / diethyl ether View Scheme | |
Multi-step reaction with 2 steps 1: BBr3 / CH2Cl2 / 0 deg C -> r.t. 2: NaH / tetrahydrofuran View Scheme |
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: LAH / tetrahydrofuran / Heating 2: BBr3 / CH2Cl2 / 0 deg C -> r.t. 3: NaH / tetrahydrofuran View Scheme |
N-[2-((S)-2-Hydroxy-3-methyl-tetrahydro-furan-3-yl)-4-methoxy-phenyl]-N-methyl-acetamide
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 88 percent / Ag2CO3 on Celite / benzene / Heating 2: 76 percent / H2O / 180 °C / sealed tube 3: iBu2AlH / CH2Cl2 / -78 °C 4: NH4OH 5: LAH / tetrahydrofuran / Heating 6: BBr3 / CH2Cl2 / 0 deg C -> r.t. 7: NaH / tetrahydrofuran View Scheme |
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: NH4OH 2: LAH / tetrahydrofuran / Heating 3: BBr3 / CH2Cl2 / 0 deg C -> r.t. 4: NaH / tetrahydrofuran View Scheme |
N-[4-Methoxy-2-((S)-3-methyl-2-oxo-tetrahydro-furan-3-yl)-phenyl]-N-methyl-acetamide
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 76 percent / H2O / 180 °C / sealed tube 2: iBu2AlH / CH2Cl2 / -78 °C 3: NH4OH 4: LAH / tetrahydrofuran / Heating 5: BBr3 / CH2Cl2 / 0 deg C -> r.t. 6: NaH / tetrahydrofuran View Scheme |
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 1) 10percent HCl, 2) NaIO4 2: 88 percent / Ag2CO3 on Celite / benzene / Heating 3: 76 percent / H2O / 180 °C / sealed tube 4: iBu2AlH / CH2Cl2 / -78 °C 5: NH4OH 6: LAH / tetrahydrofuran / Heating 7: BBr3 / CH2Cl2 / 0 deg C -> r.t. 8: NaH / tetrahydrofuran View Scheme |
N-[2-((S)-1,3-Dimethyl-2-oxo-pyrrolidin-3-yl)-4-methoxy-phenyl]-N-methyl-acetamide
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: iBu2AlH / CH2Cl2 / -78 °C 2: NH4OH 3: LAH / tetrahydrofuran / Heating 4: BBr3 / CH2Cl2 / 0 deg C -> r.t. 5: NaH / tetrahydrofuran View Scheme |
Physostigmin
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: NaBH4 / -78 deg C -> r.t. 2: 1) 10percent HCl, 2) NaIO4 3: 88 percent / Ag2CO3 on Celite / benzene / Heating 4: 76 percent / H2O / 180 °C / sealed tube 5: iBu2AlH / CH2Cl2 / -78 °C 6: NH4OH 7: LAH / tetrahydrofuran / Heating 8: BBr3 / CH2Cl2 / 0 deg C -> r.t. 9: NaH / tetrahydrofuran View Scheme |
Conditions | Yield |
---|---|
With sodium In butan-1-ol at 20℃; | 95% |
With hydrogenchloride | |
With sulfuric acid |
Conditions | Yield |
---|---|
Stage #1: Physostigmin With sodium In butan-1-ol Heating; Stage #2: (2E)-but-2-enedioic acid In butan-1-ol | 95% |
Conditions | Yield |
---|---|
In diethyl ether; acetonitrile at 20℃; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran | 71.3% |
With potassium tert-butylate In tetrahydrofuran |
Physostigmin
Conditions | Yield |
---|---|
With dihydrogen peroxide In various solvent(s) for 16h; Ambient temperature; | 71% |
Physostigmin
Methyl-carbamic acid (3aS,8aR)-8-formyl-1,3a-dimethyl-1,2,3,3a,8,8a-hexahydro-pyrrolo[2,3-b]indol-5-yl ester
Conditions | Yield |
---|---|
With dipyridinium dichromate In dichloromethane for 24h; Ambient temperature; | 28% |
With dipyridinium dichromate In dichloromethane | 25% |
Physostigmin
(3aS)-1,3a,6b,9,10,14-hexamethyl-(3ar,6bt,9at,14ac)-1,2,3,3a,6b,7,8,9,9a,10,14,14a-dodecahydro-12-oxa-1,5,9,10,14-pentaaza-dipentaleno-<1,2-b;2',1'-i>anthracen-4-one
Conditions | Yield |
---|---|
unter Luftzutritt; |
Physostigmin
(3aS)-1,3a,6b,9,10,14-hexamethyl-(3ar,6bt,9at,14ac)-1,2,3,3a,6b,7,8,9,9a,10,14,14a-dodecahydro-12-oxa-1,5,9,10,14-pentaaza-dipentaleno-<1,2-b;2',1'-i>anthracen-4-one
Physostigmin
Conditions | Yield |
---|---|
Luftoxidation; |
Physostigmin
Conditions | Yield |
---|---|
at 150 - 160℃; im Hochvakuum; |
Physostigmin
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