Our advantage--we provide High quality Ergosterol and competitive price. (1) 28 year experience in pharmaceutical industry (2)ISO9001:2008 certificated company (3)Fischer Chemicals AG China office Basic information of Ergosterol
Cas:57-87-4
Min.Order:5 Kilogram
Negotiable
Type:Trading Company
inquiryXi'an Kono Chem Co., Ltd., founded in 2014, is a holding enterprise of Hongkong Pioneer Biotech Group. It is an export-oriented manufacturing enterprise supported by the Ministry of Commerce. Kono Chem is located in Xi'an, Shaan
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $170.0 / 200.0
Type:Other
inquiryItems Standard Result Assay 98%min ----------------------------------------------------------------------------------------------
Cas:57-87-4
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Manufacturers
inquiryWe can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need CMO
Unique advantages for Ergosterol Cas 57-87-4 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Powder Storage:2-8°C Package:1kg/foil bag, 25kg/drum or as you required
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $200.0
Type:Trading Company
inquiryThe 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
1. 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:57-87-4
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryErgosterol, alias ergosterol, a white or colorless light or white crystalline powder. Ergosterol not only has a unique physiological function, but also is widely used in drug development. Ergosterol as an important component of fungal cell membrane,
Cas:57-87-4
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryAs a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis according to the contract research and development services for the fine c
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $13.0 / 15.0
Type:Lab/Research institutions
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
LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $0.9 / 1.0
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:57-87-4
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProName:High Quality Ergosterol CAS No.:57-87-... CasNo:57-87-4 Molecular Formula:C28H44O Appearance:White crystalline powder Application:provitamin form of Vitamin D2 DeliveryTime:In 7 days from China after your final ... PackAge:1kg/bag, 5k
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryPure CAS 57-87-4 Antirachitic 99% Ergosterol Powder Product Name: Ergosterol Synonyms: Provitamin D2; ergosta-5,7,22-trien-3-ol; (3beta,22E)-ergosta-5,7,22-trien-3-ol; (22E)-ergosta-5,7,22-trien-3-
Cas:57-87-4
Min.Order:100 Kilogram
FOB Price: $8.0
Type:Trading Company
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:white or off-white powder Storage:Store in sealed containers
Cas:57-87-4
Min.Order:100 Gram
Negotiable
Type:Other
inquiryin bulk supply 57-87-4 for sale Ergosterol best quality Ergosterol is a membrane lipid found almost exclusively in fungi, thus a useful indicator of living fungal biomass. Ergosterol is a sterol that is found predominantly in membranes of fungi. I
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $11.0
Type:Lab/Research institutions
inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
Cas:57-87-4
Min.Order:10 Gram
FOB Price: $1.12
Type:Trading Company
inquiryProduct Name: Ergosterol Synonyms: (22E)-Ergosta-5,7,22-trien-3-ol;(22E,24R)-Ergosta-5,7,22-trien-3-ol;(3beta)-Ergosta-5,7,22- trien-3-ol;ergosta-5:6,7:8,22:23-trien-3-ol;7,22-trien-3-ol, (3.beta.)-Ergosta-5 delta-5,7,22-ergostatrien-3beta-ol;E
Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $114.0 / 124.0
Type:Trading Company
inquiryErgosterol CAS:57-87-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediates, st
Cas:57-87-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Cas:57-87-4
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products with competi
Cas:57-87-4
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $8.0 / 100.0
Type:Lab/Research institutions
inquiryHenan 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:57-87-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryJ&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
Hubei Yuanmeng Biological Technology Co., Ltd., which is located in Wuhan, China. We are specializing in the exportation of APIs, and plant extracts ect. Our products has been exported to America, Australia, Brazil, the Europe, Middle East and other
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $3.0 / 5.0
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
Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Ergosterol CAS 57-87-4 Our advantage 1.Top quality: Using high quality material and establishing a strict quality control system,assigning specific persons in charge of each part of production,from raw material purchase to assembly. 2 Profe
Cas:57-87-4
Min.Order:1 Kilogram
FOB Price: $10.0 / 50.0
Type:Trading Company
inquiryErgosterol
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In tetrahydrofuran for 16h; Heating; | 76% |
3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene
A
Ergosterol
Conditions | Yield |
---|---|
With diisobutylaluminium hydride In hexane; toluene at 0℃; for 0.166667h; | A 70% B n/a |
3β-hydroxy-3',5'-dioxo-4'-phenyl-5,8<1',2'>-1',2',4'-triazolidino-5α,8α-ergosta-6,22-diene
A
Ergosterol
Conditions | Yield |
---|---|
With diisobutylaluminium hydride In hexane; toluene at 0℃; for 0.166667h; | A 51% B n/a |
(24R)-5,7-Ergostadiene-1α,3β,25-triol
Ergosterol
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether for 0.05h; Irradiation; | 25% |
diethyl ether
previtamin D2
A
Ergosterol
B
lumisterol
C
tachysterol
Conditions | Yield |
---|---|
at 0℃; UV-Licht.Irradiation; |
(22E,24R)-ergosta-4,7,22-triene-3-one
Ergosterol
Conditions | Yield |
---|---|
With aluminum isopropoxide; isopropyl alcohol |
lanosterol
Ergosterol
Conditions | Yield |
---|---|
biosynthesis by Botrytis cinerea in the presence of (dl)-cis-1-(4-chlorophenyl)-2-(1H-1,2,4-triazol-1-yl)cycloheptanol; |
benzoyloxy-3β (urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 10 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 10 % Turnov. |
benzoyloxy-3β (benzalamino-4' urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 53 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 53 % Turnov. |
benzoyloxy-3β (p-nitrophenyl-4' urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 98 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 98 % Turnov. |
benzoyloxy-3β (anisalamino-4' urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 29 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 29 % Turnov. |
Multi-step reaction with 2 steps 1: 98 percent / NaNO2 (10percent) / tetrahydrofuran; acetic acid 2: 10 percent Turnov. / KOH (0.8N) / ethanol / 2 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 98 percent / 2,4-dinitro phenylhydrazine, p-toluenesulfonic acid monohydrate / H2O; tetrahydrofuran / 3 h / Heating 2: 18 percent Turnov. / KOH (0.8N) / ethanol / 2 h / Heating View Scheme | |
Multi-step reaction with 3 steps 1: 98 percent / 2,4-dinitro phenylhydrazine, p-toluenesulfonic acid monohydrate / H2O; tetrahydrofuran / 3 h / Heating 2: 95 percent / PhSeOOH / tetrahydrofuran / 0.33 h / Heating 3: 10 percent Turnov. / KOH (0.8N) / ethanol / 2 h / Heating View Scheme |
benzoyloxy-3β (p-nitrobenzalamino-4' urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 67 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 62 % Turnov. |
benzoyloxy-3β (amino-4' urazolo-1',2')-5α,8α ergostadiene-6,22
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 2h; Heating; | 18 % Turnov. |
Multi-step reaction with 2 steps 1: 95 percent / PhSeOOH / tetrahydrofuran / 0.33 h / Heating 2: 10 percent Turnov. / KOH (0.8N) / ethanol / 2 h / Heating View Scheme |
(22E)-5α,8α-(4'-phenyl)urazoloergosta-6,22-dien-3β-yl benzoate
Ergosterol
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol; water for 2h; Heating; | 37 % Turnov. |
With potassium hydroxide In ethanol for 2h; Heating; | 37 % Turnov. |
(22E)-3α,5-cyclo-5α-ergosta-6,8(14),22-triene
trichloroacetic acid
A
Ergosterol
Conditions | Yield |
---|---|
at 80℃; Kochen des Reaktionsprodukts mit aethanol. NaOH; |
chloroform
(22E)-3α,5-cyclo-5α-ergosta-6,8(14),22-triene
trichloroacetic acid
A
Ergosterol
Conditions | Yield |
---|---|
at 20℃; Kochen des Reaktionsprodukts mit aethanol. NaOH; |
propan-1-ol
9(11)-dehydroergosterol
A
Ergosterol
B
ergosta-7,9(11),22-triene-3β-ol
C
(22E)-ergosta-7,22-dien-3β-ol
ethanol
9(11)-dehydroergosterol
A
Ergosterol
B
ergosta-7,9(11),22-triene-3β-ol
C
(22E)-ergosta-7,22-dien-3β-ol
(22E,24R)-ergosta-4,7,22-triene-3-one
aluminum isopropoxide
isopropyl alcohol
A
Ergosterol
B
24βF-methyl-cholestatrien-(4.7.22t)-ol-(3α)
C
ergosta-4,7,22-trien-3-ol
22-hydroxy-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-23,24-dinorchol-6-ene-1α,3β-diol 1,3-diacetate
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: pyridine / 4 h / Ambient temperature 2: 1) NaI / 1) DMF, 30 min, 80 deg C, 2) 30 min, 80 deg C 3: 79 percent / KOH / methanol / 0.5 h / Heating 4: 90 percent / PPTS / CH2Cl2 / 24 h / Ambient temperature 5: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 6: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 7: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 8: 86 percent / LiAlH4 / tetrahydrofuran / Heating 9: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
22-Oxo-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-23,24-dinor-6-cholene-1α,3β-diyl diacetate
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: 950 g / NaBH4 / methanol / 0.17 h / Ambient temperature 2: pyridine / 4 h / Ambient temperature 3: 1) NaI / 1) DMF, 30 min, 80 deg C, 2) 30 min, 80 deg C 4: 79 percent / KOH / methanol / 0.5 h / Heating 5: 90 percent / PPTS / CH2Cl2 / 24 h / Ambient temperature 6: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 7: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 8: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 9: 86 percent / LiAlH4 / tetrahydrofuran / Heating 10: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
22-Phenylsulfonyl-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-23,24-dinor-6-cholene-1α,3β-diol
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 90 percent / PPTS / CH2Cl2 / 24 h / Ambient temperature 2: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 3: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 4: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 5: 86 percent / LiAlH4 / tetrahydrofuran / Heating 6: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
22-Phenylsulfonyl-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-23,24-dinor-6-cholene-1α,3β-diyl Diacetate
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 79 percent / KOH / methanol / 0.5 h / Heating 2: 90 percent / PPTS / CH2Cl2 / 24 h / Ambient temperature 3: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 4: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 5: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 6: 86 percent / LiAlH4 / tetrahydrofuran / Heating 7: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
5α,8α-(4-Phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-23,24-dinor-6-cholene-1α,3β,22-triyl 1α,3β-Diacetate 22-p-Toluenesulfonate
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 1) NaI / 1) DMF, 30 min, 80 deg C, 2) 30 min, 80 deg C 2: 79 percent / KOH / methanol / 0.5 h / Heating 3: 90 percent / PPTS / CH2Cl2 / 24 h / Ambient temperature 4: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 5: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 6: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 7: 86 percent / LiAlH4 / tetrahydrofuran / Heating 8: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
22-Phenylsulfonyl-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-1α,3β-bis(tetrahydropyranyloxy)-23,24-dinor-6-cholene
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 2: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 3: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 4: 86 percent / LiAlH4 / tetrahydrofuran / Heating 5: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
(24R)-5α,8α-(4-Phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-1α,3β,25-tris(tetrahydropyranyloxy)-6-ergostene
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 2: 86 percent / LiAlH4 / tetrahydrofuran / Heating 3: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
(24R)-22-Phenylsulfonyl-5α,8α-(4-phenyl-3,5-dioxo-1,2,4-triazolidine-1,2-diyl)-1α,3β,25-tris(tetrahydropyranyloxy)-6-ergostene
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 2: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 3: 86 percent / LiAlH4 / tetrahydrofuran / Heating 4: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
(3S)-4-iodo-2,3-dimethyl-2-butanol tetrahydropyranyl ether
Ergosterol
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 1) BuLi, HMPA / 1) THF, -78 deg C to -20 deg C, 20 min, 2) THF, -20 deg C, 1.5h 2: 53 percent / sodium amalgam (5percent), Na2HPO4 / methanol / 16 h / Ambient temperature 3: 83 percent / p-TsOH*H2O, 95percent EtOH / 4 h / 80 °C 4: 86 percent / LiAlH4 / tetrahydrofuran / Heating 5: 25 percent / diethyl ether; tetrahydrofuran / 0.05 h / Irradiation View Scheme |
Conditions | Yield |
---|---|
With pyridine at 20℃; for 3h; Inert atmosphere; | 100% |
With pyridine at 20℃; for 24h; | 96% |
With pyridine; dmap In dichloromethane at 20℃; | 92% |
4-Phenylurazole
Ergosterol
3β-hydroxy-3',5'-dioxo-4'-phenyl-5,8<1',2'>-1',2',4'-triazolidino-5α,8α-ergosta-6,22-diene
Conditions | Yield |
---|---|
In acetone at 20℃; for 15h; | 100% |
With (PhSeO)2O In tetrahydrofuran for 2h; Ambient temperature; | 96% |
Conditions | Yield |
---|---|
With phosphorus pentoxide | 100% |
With phosphorus pentoxide at 20℃; for 1h; | 89% |
Conditions | Yield |
---|---|
With palladium on activated charcoal; hydrogen In methanol; dichloromethane at 20℃; for 20h; | 99% |
With diethyl ether; palladium at 20℃; Hydrogenation; | |
With diethyl ether; palladium Hydrogenation; |
Conditions | Yield |
---|---|
With tert-Amyl alcohol; ammonia; lithium In tetrahydrofuran at -78℃; for 4h; | 99% |
With diisobutylaluminium hydride In toluene at 110℃; for 6h; in sealed flask; | 94% |
With diethyl ether; palladium Hydrogenation; |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 24h; Reflux; | 99% |
With enzyme-substance from pig's pancreas | |
at 190℃; |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 24h; Reflux; | 99% |
With hydrogenchloride; sodium dodecyl-sulfate Inert atmosphere; |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 12h; Reflux; | 99% |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 12h; Reflux; | 99% |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 12h; Reflux; | 99% |
Conditions | Yield |
---|---|
With iron(III) chloride hexahydrate In 1,3,5-trimethyl-benzene for 24h; Reflux; | 99% |
Conditions | Yield |
---|---|
With pyridine; copper(l) chloride In tetrahydrofuran at 20℃; for 2h; | 99% |
Conditions | Yield |
---|---|
With pyridine at 10℃; for 1h; Inert atmosphere; | 98% |
With pyridine at 10℃; for 1h; | 94% |
With pyridine at 10℃; for 1h; | 94% |
Conditions | Yield |
---|---|
With pyridine In dichloromethane | 98% |
With pyridine In dichloromethane at 0 - 20℃; for 18h; | 94% |
Ergosterol
tert-butyldimethylsilyl chloride
3β-tert-Butyldimethylsilyloxy-ergosta-5,7,22-triene
Conditions | Yield |
---|---|
With pyridine; 1H-imidazole In toluene at 110℃; for 3h; Inert atmosphere; | 98% |
With pyridine; 1H-imidazole at 25℃; for 2h; Etherification; | 97% |
With 1H-imidazole In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 24h; Inert atmosphere; |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 10℃; for 18h; | 98% |
Ergosterol
5α,6α-epoxy-24(R)-methylcholesta-7,22-dien-3β-ol
Conditions | Yield |
---|---|
With potassium carbonate; 3-chloro-benzenecarboperoxoic acid In dichloromethane; water at 25℃; for 0.75h; diastereoselective reaction; | 98% |
With potassium carbonate; 3-chloro-benzenecarboperoxoic acid In dichloromethane; water at 25℃; for 0.75h; Sonication; | 98% |
Ergosterol
4-(p-nitrophenyl)urazole
(p-nitrophenyl-4' urazolo-1',2')-5α,8α ergostadiene-6,22 ol-3β
Conditions | Yield |
---|---|
With (PhSeO)2O In tetrahydrofuran for 2h; Ambient temperature; | 97% |
Ergosterol
p-toluenesulfonyl chloride
(22E,24R)-5α-ergosta-5,7,22-triene-3-p-toluenesulfonate
Conditions | Yield |
---|---|
With sodium carbonate In toluene at 10℃; for 2h; Reagent/catalyst; Temperature; | 96.3% |
Ergosterol
(22E,24R)-ergosta-7,22-dien-3β-ol
Conditions | Yield |
---|---|
With diisobutylaluminium hydride In toluene at 110℃; for 60h; | 96% |
With lithium; ethylamine |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 24h; Inert atmosphere; | 96% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 24h; Inert atmosphere; | 96% |
Conditions | Yield |
---|---|
With pyridine for 6h; Ambient temperature; | 95% |
With pyridine |
Conditions | Yield |
---|---|
With calcium hydride; N-benzyl-N,N,N-triethylammonium chloride In toluene | 95% |
Conditions | Yield |
---|---|
In dichloromethane at 0℃; for 0.5h; nitroso-Diels-Alder reaction; stereoselective reaction; | 95% |
Ergosterol
2,3,4,5-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate
ergosterol-3-O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranoside)
Conditions | Yield |
---|---|
Stage #1: Ergosterol; 2,3,4,5-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate In dichloromethane at 0℃; for 0.5h; Inert atmosphere; Molecular sieve; Stage #2: With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0 - 20℃; for 1.5h; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 24h; Inert atmosphere; | 95% |
(E)-3-(4-acetoxy-3-methoxyphenyl)acrylic acid
Ergosterol
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 100℃; under 13501.4 Torr; for 0.25h; Microwave irradiation; | 94% |
Conditions | Yield |
---|---|
With oxygen; phloxine B In methanol at 5℃; for 3h; Irradiation; Inert atmosphere; | 93% |
With oxygen In methanol Diels-Alder Cycloaddition; UV-irradiation; | 93% |
With oxygen; 5,10,15,20-tetraphenylporphyrin In dichloromethane at 0℃; for 4h; Irradiation; | 70% |
Ergosterol
2,3,4,6-tetra-O-benzoyl-α,b-D-galactopyranosyl trichloroacetimidate
ergosterol-3-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranoside)
Conditions | Yield |
---|---|
Stage #1: Ergosterol; 2,3,4,6-tetra-O-benzoyl-α,b-D-galactopyranosyl trichloroacetimidate In dichloromethane at 0℃; for 0.5h; Inert atmosphere; Molecular sieve; Stage #2: With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0 - 20℃; for 1.5h; Inert atmosphere; | 93% |
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