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Lonwin Chemical Group Limited

Lonwin Industry group limited as a professional manufactor & exporter of chemical materials ,we totally haver more than 230 stuffs, we have been on this line for more than 9 years. Our chemical materials are exported to lot of countries and

Low price with good quality 2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:100 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

inquiry

ANQING CHICO PHARMACEUTICAL CO.,LTD.

High quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours; 2.Best quality in your requirement; 3.We pay more attention on delivery time, and usually ship on time; 4.Under the premise of safety and effectiveness, we can pr

2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Suzhou Lipin chemical Co., Ltd.

high quality ,iso , cgmp . accept the supplier audit . in stock now ,capacity is flexible support the documents Appearance: Light yellow powder Storage: protect from light seal room temperature Package:DRUM Application:key intermediates

109113-72-6 2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Dayang Chem (Hangzhou) Co.,Ltd.

As 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 services. DayangChem can provide different quantities of custom synthesis ch

2-(Chloromethyl)-4-methylquinazoline Manufacturer/High quality/Best price/In stock

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Sinoway Industrial Co., Ltd.

Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) 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 . 5) We c

Top Quality 99% up 2-(Chloromethyl)-4-Methylquinazoline / Linagliptin Intermediate 109113-72-6

Cas:109113-72-6

Min.Order:2 Kilogram

FOB Price: $55.0 / 200.0

Type:Trading Company

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White to slightly yellow powder Slightly yellow powder Assay

High purity Various Specifications Quinazoline, 2-(chloromethyl)-4-methyl- CAS:109113-72-6

Cas:109113-72-6

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Trading Company

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:cool dry place Package:25kg/drum Application:pharmaceutical intermediate Transportation:by co

Manufacturer high quality 2-(chloromethyl)-4-methylquinazoline Cas 109113-72-6 with good price

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Hangzhou Think Chemical Co. Ltd

Name 2-(Chloromethyl)-4-methylquinazoline HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business e

Main produce 2-(Chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Other

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:white powder Storage:Sealed, dry, microtherm , avoid light and smell Package:According to the demand of customer Application:Pharmaceutical intermediates Transportation:by air or by sea Port:shanghai

2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api, intermedi

2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Shanghai SE Pharm Co., Ltd

1. made in GMP plant, commerially 2. Normal Stock: 500kgs 3. Audit accepted. Related documents are available to offer and audited by many clients, such as Lupin, MSN, Dr reddy etc 4. Chromatographic Purity (HPLC): not less than 99

2-(Chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai 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

lower price High quality 2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our 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

2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/682.html Product Name 2-(Chloromethyl)-4-methylquinazoline

2-(Chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Gram

FOB Price: $45.0

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

2-(chloromethyl)-4-methylquinazoline Basic information Product Name: 2-(chloromethyl)-4-methylquinazoline Synonyms: 2-(chloromethyl)-4-methylquinazoline;Quinazoline,2-(chloroMethyl)-4-Methyl-;Linagliptin interMediate A;2-chloroMethyl-4-Methyl q

Factory Supply Linagliptin INT3

Cas:109113-72-6

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&amp

2-(Chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

2- (Chloromethyl) -4-Methylquinazoline CAS 109113-72-6

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 6 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

2-(chloromethyl)-4-methylquinazoline 109113-72-6

Cas:109113-72-6

Min.Order:1 Metric Ton

FOB Price: $500.0

Type:Lab/Research institutions

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

Discount price CAS 109113-72-6 with best quality

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

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

2-(chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:10 Kilogram

FOB Price: $40.0 / 60.0

Type:Trading Company

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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 email in time prod

Quinazoline,2-(chloromethyl)-4-methyl-

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Sinotech Import&Export Corporation

Name: 2-(Chloromethyl)-4-methylquinazoline Synonyms: Quinazoline, 2-(chloromethyl)-4-methyl- CAS: 109113-72-6 MF: C10H9ClN2 Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Pharmaceuti

2-(Chloromethyl)-4-methylquinazoline CAS: 109113-72-6

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Appearance:Light yellow to Yellow to Orange powder Storage:under inert gas (nitrogen or Argon) at 2–8 °C Package:25kg/drum Application:2-(Chloromethyl)-4-methylquinazoline, is a building block used for the preparation of Linagliptin (L465900), and

2-(chloromethyl)-4-methylquinazoline with high quality

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

Advantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best serv

2-(chloromethyl)-4-methylquinazoline 109113-72-6

Cas:109113-72-6

Min.Order:10 Gram

Negotiable

Type:Other

inquiry

Shanghai Upbio Tech Co.,Ltd

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

Quinazoline,2-(chloromethyl)-4-methyl- 109113-72-6

Cas:109113-72-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We 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

Hangzhou Huarong Pharm Co., Ltd.

Hangzhou Huarong Pharm Co., Ltd. established since 2009 , has been always focusing on supplying products and services to our clients in the field of small molecule drug. Huarong Pharm has built platforms for the research, development and manufac

2-(Chloromethyl)-4-methylquinazoline

Cas:109113-72-6

Min.Order:1 Gram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

inquiry

HANWAYS CHEMPHARM CO.,LIMITED

Wuhan hanweishi Pharmchem Co., Ltd(Hanways chempharm) is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The leading products range are APIs, Hormones, Peptides

Linagliptin Intermediate CAS 109113-72-6

Cas:109113-72-6

Min.Order:100 Kilogram

FOB Price: $1.0 / 5.0

Type:Trading Company

inquiry

Baoji Guokang Healthchem co.,ltd

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 present

2-(chloromethyl)-4-methylquinazoline WITH BEST PRICE

Cas:109113-72-6

Min.Order:1 Kilogram

FOB Price: $700.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

2-(Chloromethyl)-4-methylquinazoline CAS 109113-72-6 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 q

2-(Chloromethyl)-4-methylquinazoline CAS 109113-72-6

Cas:109113-72-6

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2-aminoacetophenone
551-93-9

2-aminoacetophenone

Chloroacetamide
79-07-2

Chloroacetamide

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Conditions
ConditionsYield
Stage #1: 2-aminoacetophenone With phosphoric acid In ethanol at 20℃;
Stage #2: Chloroacetamide In ethanol Reagent/catalyst; Solvent; Reflux;
94.26%
With oxygen; triethylamine; copper(l) chloride In tetrahydrofuran for 12h; Reflux;88%
2-aminoacetophenone
551-93-9

2-aminoacetophenone

chloroacetonitrile
107-14-2

chloroacetonitrile

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Conditions
ConditionsYield
With hydrogenchloride In 1,4-dioxane at 6℃; for 2h;85%
With hydrogenchloride; [1-(3-sulfonic acid)]propyl-3-methylimidazolium hydrogen sulfate In 1,4-dioxane; water at 8℃; for 18h; Reagent/catalyst; Temperature;85.14%
Stage #1: 2-aminoacetophenone With hydrogenchloride In 1,4-dioxane at 10℃; Cooling;
Stage #2: chloroacetonitrile In 1,4-dioxane at -10℃; for 1h;
45%
chloroacetonitrile
107-14-2

chloroacetonitrile

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Conditions
ConditionsYield
Stage #1: 2-aminoacetophenone With hydrogenchloride In 1,4-dioxane at -10 - 25℃;
Stage #2: chloroacetonitrile In 1,4-dioxane at -10 - 2℃; for 3h;
Stage #3: With sodium hydroxide In 1,4-dioxane; water at 5 - 11℃;
74%
2-(chloromethyl)-4-methylquinazoline 3-oxide
6640-59-1

2-(chloromethyl)-4-methylquinazoline 3-oxide

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Conditions
ConditionsYield
With phosphorus trichloride In chloroform Heating / reflux;57%
Ro 5-3663
70656-87-0

Ro 5-3663

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Conditions
ConditionsYield
With trichlorophosphate for 0.5h; Heating;52%
8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

2-bromo-1-(but-2-ynyl)-4-methyl-6-((4-methylquinazolin-2-yl)methyl)-1H-imidazo[4,5-b]pyridine-5,7-(4H,6H)-dione
853029-57-9

2-bromo-1-(but-2-ynyl)-4-methyl-6-((4-methylquinazolin-2-yl)methyl)-1H-imidazo[4,5-b]pyridine-5,7-(4H,6H)-dione

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 8h;95.77%
With potassium carbonate In 1-methyl-pyrrolidin-2-one at 75℃; for 6h;93%
With sodium carbonate In N,N-dimethyl acetamide at 100℃; for 6h; Temperature; Large scale;89.4%
(R)-piperidin-3-ylcarbamic acid tert-butyl ester
309956-78-3

(R)-piperidin-3-ylcarbamic acid tert-butyl ester

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)-piperidin-1-yl]-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine

1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)-piperidin-1-yl]-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine

Conditions
ConditionsYield
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; 2-chloromethyl-4-methylquinazoline With potassium carbonate In 1-methyl-pyrrolidin-2-one; acetonitrile at 50℃; for 6h;
Stage #2: (R)-piperidin-3-ylcarbamic acid tert-butyl ester In 1-methyl-pyrrolidin-2-one; acetonitrile at 60℃; for 8h; Solvent; Temperature;
95.1%
With sodium carbonate at 55 - 60℃; for 6h; Concentration; Reagent/catalyst;91.8%
Stage #1: (R)-piperidin-3-ylcarbamic acid tert-butyl ester; 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione With 1-methyl-pyrrolidin-2-one; potassium carbonate; potassium iodide for 10h;
Stage #2: 2-chloromethyl-4-methylquinazoline for 12h; Time;
90%
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; 2-chloromethyl-4-methylquinazoline With potassium carbonate; potassium iodide In 1-methyl-pyrrolidin-2-one at 40 - 50℃;
Stage #2: (R)-piperidin-3-ylcarbamic acid tert-butyl ester Reagent/catalyst; Solvent; Temperature;
86.7%
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; 2-chloromethyl-4-methylquinazoline With potassium carbonate; potassium iodide In 1-methyl-pyrrolidin-2-one at 40 - 50℃;
Stage #2: (R)-piperidin-3-ylcarbamic acid tert-butyl ester In 1-methyl-pyrrolidin-2-one Reagent/catalyst; Solvent; Temperature;
8-[(R)-3-aminopiperidin-1-yl]-3,7-dihydro-3-methyl-7-(2-butynyl)-1H-purine-2,6-dione

8-[(R)-3-aminopiperidin-1-yl]-3,7-dihydro-3-methyl-7-(2-butynyl)-1H-purine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Linagliptin

Linagliptin

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 10h;94.8%
With sodium hydrogencarbonate In 1-methyl-pyrrolidin-2-one at 90℃; Solvent; Temperature;1.8 g
2-bromo-3-(2-butyn-1-yl)-3,5-dihydro-imidazo[4,5-d]pyridazin-4-one
705280-62-2

2-bromo-3-(2-butyn-1-yl)-3,5-dihydro-imidazo[4,5-d]pyridazin-4-one

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

2-bromo-3-(2-butyn-1-yl)-5-[(4-methyl-quinazolin-2-yl)methyl]-3,5-dihydro-imidazo[4,5-d]pyridazin-4-one
705280-63-3

2-bromo-3-(2-butyn-1-yl)-5-[(4-methyl-quinazolin-2-yl)methyl]-3,5-dihydro-imidazo[4,5-d]pyridazin-4-one

Conditions
ConditionsYield
With caesium carbonate In DMF (N,N-dimethyl-formamide) at 80℃; for 1h;94%
With caesium carbonate In DMF (N,N-dimethyl-formamide) at 80℃; for 1h;94%
With potassium carbonate In 1-methyl-pyrrolidin-2-one at 80℃; for 3h;75%
1-methyluracil
615-77-0

1-methyluracil

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

C15H14N4O2

C15H14N4O2

Conditions
ConditionsYield
With triethylamine In 1-methyl-pyrrolidin-2-one at 80 - 85℃; Reagent/catalyst; Solvent; Temperature;93.6%
With triethylamine In 1-methyl-pyrrolidin-2-one at 80 - 85℃; for 34h; Solvent; Temperature; Reagent/catalyst;93.6%
8-iodine-7-(2-butynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione

8-iodine-7-(2-butynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

7-but-2-ynyl-8-iodo-3-methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione

7-but-2-ynyl-8-iodo-3-methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 8h;93.2%
Stage #1: 8-iodine-7-(2-butynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione; 2-chloromethyl-4-methylquinazoline With sodium carbonate In 1-methyl-pyrrolidin-2-one at 90℃; for 11h;
Stage #2: With acetic acid In ethanol at 60℃; for 0.5h;
65%
8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

C13H14N2O2
886588-61-0

C13H14N2O2

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

(R)-7-(but-2-yn-1-yl)-8-(3-(1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine2,6-dione
886588-63-2

(R)-7-(but-2-yn-1-yl)-8-(3-(1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine2,6-dione

Conditions
ConditionsYield
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; C13H14N2O2 With 1-methyl-pyrrolidin-2-one; potassium carbonate; potassium iodide at 50 - 60℃;
Stage #2: 2-chloromethyl-4-methylquinazoline
91%
1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione
1431528-74-3

1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-(2-butyn-1-yl)-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4 (1H,3H)-dione

1-(2-butyn-1-yl)-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4 (1H,3H)-dione

Conditions
ConditionsYield
Stage #1: 1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione With sodium hydride; lithium bromide In N,N-dimethyl-formamide at 0℃; for 0.5h; Inert atmosphere;
Stage #2: 2-chloromethyl-4-methylquinazoline In N,N-dimethyl-formamide at 80℃; Inert atmosphere;
88%
Stage #1: 1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione With sodium hydride In dimethyl sulfoxide; N,N-dimethyl-formamide at 0℃; for 0.0833333h;
Stage #2: With lithium bromide In dimethyl sulfoxide; N,N-dimethyl-formamide for 0.25h;
Stage #3: 2-chloromethyl-4-methylquinazoline In dimethyl sulfoxide; N,N-dimethyl-formamide at 20℃;
86.5%
1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione
1431528-74-3

1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-methyl-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

1-methyl-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

Conditions
ConditionsYield
Stage #1: 1-(but-2-yn-1-yl)-6-chloropyrimidine-2,4(1H,3H)-dione With sodium hydride In dimethyl sulfoxide; N,N-dimethyl-formamide at 0℃; for 0.0833333h;
Stage #2: With lithium bromide In dimethyl sulfoxide; N,N-dimethyl-formamide for 0.25h;
Stage #3: 2-chloromethyl-4-methylquinazoline In dimethyl sulfoxide; N,N-dimethyl-formamide at 20℃;
86.5%
8-bromo-3-methyl-7-(thietan-3-yl)-3,7-dihydro-1H-pyrine-2,6-dione
1005482-51-8

8-bromo-3-methyl-7-(thietan-3-yl)-3,7-dihydro-1H-pyrine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

C19H17BrN6O2S

C19H17BrN6O2S

Conditions
ConditionsYield
Stage #1: 8-bromo-3-methyl-7-(thietan-3-yl)-3,7-dihydro-1H-pyrine-2,6-dione With potassium hydroxide In water; N,N-dimethyl-formamide for 0.5h;
Stage #2: 2-chloromethyl-4-methylquinazoline In water; N,N-dimethyl-formamide at 20℃; for 6h;
86%
8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

(R)-ethyl nipecotate
25137-01-3

(R)-ethyl nipecotate

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

C28H31N7O4

C28H31N7O4

Conditions
ConditionsYield
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; (R)-ethyl nipecotate With 1-methyl-pyrrolidin-2-one; potassium carbonate; potassium iodide at 60 - 70℃;
Stage #2: 2-chloromethyl-4-methylquinazoline
85%
3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)piperidin-1-yl]xanthine
666816-91-7

3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)piperidin-1-yl]xanthine

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)-piperidin-1-yl]-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine

1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)-piperidin-1-yl]-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine

Conditions
ConditionsYield
With tetrabutylammomium bromide; potassium carbonate In cyclohexane Reagent/catalyst; Solvent; Reflux;80.3%
8-bromo-3-methyl-7-(prop-2-ynyl)-1H-purine-2,6(3H,7H)-dione

8-bromo-3-methyl-7-(prop-2-ynyl)-1H-purine-2,6(3H,7H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

8-bromo-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-7-(prop-2-ynyl)-1H-purine-2,6(3H,7H)-dione

8-bromo-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-7-(prop-2-ynyl)-1H-purine-2,6(3H,7H)-dione

Conditions
ConditionsYield
With sodium carbonate In N,N-dimethyl-formamide at 80℃; for 12h;80%

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-(3-methyl-2-buten-1-yl)-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

1-(3-methyl-2-buten-1-yl)-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

acetaldehyde
75-07-0

acetaldehyde

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

4,4'-(2-methylpropane-1,3-diyl)bis(2-chloromethylquinazoline)

4,4'-(2-methylpropane-1,3-diyl)bis(2-chloromethylquinazoline)

Conditions
ConditionsYield
With sodium hydroxide In 1,4-dioxane; water at 10 - 25℃; for 17.5h;77.78%
8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

C20H17BrN6O2

C20H17BrN6O2

Conditions
ConditionsYield
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione With chloro-trimethyl-silane; trimethylsilyl trifluoromethanesulfonate In toluene for 24h; Reflux;
Stage #2: 2-chloromethyl-4-methylquinazoline With sodium hydride In N,N-dimethyl-formamide at 0 - 10℃; for 5h;
72.5%
7-allyl-8-bromo-3-methyl-1H-purine-2,6(3H,7H)-dione

7-allyl-8-bromo-3-methyl-1H-purine-2,6(3H,7H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

7-allyl-8-bromo-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-1H-purine-2,6(3H,7H)-dione

7-allyl-8-bromo-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-1H-purine-2,6(3H,7H)-dione

Conditions
ConditionsYield
With sodium carbonate In N,N-dimethyl-formamide at 80℃; for 12h;72%
C23H22N6O4

C23H22N6O4

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

(R)-7-(but-2-yn-1-yl)-8-(3-(1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine2,6-dione
886588-63-2

(R)-7-(but-2-yn-1-yl)-8-(3-(1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine2,6-dione

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran for 25h; Reflux;69.8%
1-allyl-6-chloropyrimidine-2,4(1H,3H)-dione

1-allyl-6-chloropyrimidine-2,4(1H,3H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

1-allyl-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

1-allyl-6-chloro-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

Conditions
ConditionsYield
Stage #1: 1-allyl-6-chloropyrimidine-2,4(1H,3H)-dione With sodium hydride; lithium bromide In N,N-dimethyl-formamide at 0℃; for 0.5h; Inert atmosphere;
Stage #2: 2-chloromethyl-4-methylquinazoline In N,N-dimethyl-formamide at 80℃; Inert atmosphere;
65%
3-(R)-aminopiperidine dihydrochloride

3-(R)-aminopiperidine dihydrochloride

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione
666816-98-4

8-bromo-7-(but-2-yn-1-yl)-3-methyl-2,,6-dihydro-1H-purine-2,6-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

Linagliptin

Linagliptin

Conditions
ConditionsYield
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; 2-chloromethyl-4-methylquinazoline With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 6h;
Stage #2: 3-(R)-aminopiperidine dihydrochloride With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 8h;
57%
Stage #1: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione; 2-chloromethyl-4-methylquinazoline With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 6h;
Stage #2: 3-(R)-aminopiperidine dihydrochloride With potassium carbonate In N,N-dimethyl-formamide at 20 - 80℃; for 8h;
Stage #3: pH=8;
57%
2,2,2-trifluoroacetamide
354-38-1

2,2,2-trifluoroacetamide

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

2,2,2-trifluoro-N-((4-methylquinazolin-2-yl)methyl)acetamide

2,2,2-trifluoro-N-((4-methylquinazolin-2-yl)methyl)acetamide

Conditions
ConditionsYield
Stage #1: 2,2,2-trifluoroacetamide With caesium carbonate In tetrahydrofuran at 20℃; for 0.0833333h; Inert atmosphere;
Stage #2: 2-chloromethyl-4-methylquinazoline In tetrahydrofuran at 65℃; for 16h; Inert atmosphere;
55%
2-[(6-chloro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)methyl]benzonitrile
865758-95-8

2-[(6-chloro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)methyl]benzonitrile

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

6-chloro-1-(2-cyanobenzyl)-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

6-chloro-1-(2-cyanobenzyl)-3-[(4-methylquinazolin-2-yl)methyl]pyrimidine-2,4(1H,3H)-dione

Conditions
ConditionsYield
Stage #1: 2-[(6-chloro-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)methyl]benzonitrile With sodium hydride; lithium bromide In N,N-dimethyl-formamide at 0℃; for 0.5h; Inert atmosphere;
Stage #2: 2-chloromethyl-4-methylquinazoline In N,N-dimethyl-formamide at 80℃; Inert atmosphere;
50%
2,5-dimethoxyphenylboronic acid
107099-99-0

2,5-dimethoxyphenylboronic acid

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

C18H18N2O2
1416422-98-4

C18H18N2O2

Conditions
ConditionsYield
With potassium phosphate; C12H10ClNPd*C16H21O3P In tetrahydrofuran; water at 60℃; for 20h;24%
6-chloro-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione

6-chloro-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione

2-chloromethyl-4-methylquinazoline
109113-72-6

2-chloromethyl-4-methylquinazoline

6-chloro-3-[(4-methylquinazolin-2-yl)methyl]-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione

6-chloro-3-[(4-methylquinazolin-2-yl)methyl]-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione

Conditions
ConditionsYield
Stage #1: 6-chloro-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione With sodium hydride; lithium bromide In N,N-dimethyl-formamide at 0℃; for 0.5h; Inert atmosphere;
Stage #2: 2-chloromethyl-4-methylquinazoline In N,N-dimethyl-formamide at 80℃; Inert atmosphere;
22%

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