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hangzhou verychem science and technology co.ltd

Product name: 2,6-Dichloro-4,8-dipiperidino-pyrimido[5,4-d]pyrimidine Cas No: 7139-02-8 Assay: 98%min Hangzhou Verychem Science And Technology Co. Ltd. was set up in year 2004, it’s a young but fa

2,6-Dichloro-4,8-dipiperidino-pyrimido[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

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

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc. We are specialized in chemical synthesis, process development of

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine Manufacturer

Cas:7139-02-8

Min.Order:1 Kilogram

FOB Price: $1.0

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

Pharmaceutical Grade CAS 7139-02-8 with competitive price

Cas:7139-02-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name: 2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine CAS RN.: 7139-02-8 Molecular Formula: C16H20Cl2N6 Molecular Weight: 367.28 Appearance: white powder Storage:Store in cool and dry place, away from sun light. Package: 25kgs/drum

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

FOB Price: $1.0

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

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl- 7139-02-8

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine CAS:7139-02-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specia

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine CAS:7139-02-8

Cas:7139-02-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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 emai

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

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

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

superior quality, moderate price & quick delivery Our product quality and property receive very good reputations both domestically and abroad. the products are well sold to over 10 provinces in China, and to Asia, Europe, the Americas, Af

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

inquiry

Hangzhou J&H Chemical Co., Ltd.

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

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development 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 chemi

High quality Dipyridamole dichloride; 2,6-Dichloro-4,8-dipiperidinopyrimidino [5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

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,

2,6-Dichloro-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Siwei Development Group Ltd.

Product name: 2,6-Dichloro-4,8-Dipiperidinopyrimidino[5,4-d]pyrimidine CAS No.: 7139-02-8 Molecule Formula:C16H20Cl2N6 Molecule Weight:367.28 Purity: 99.0% Package: 25kg/drum Description:White crystalline powder Manufacture Standards:

Lower Price 2,6-Dichloro-4,8-Dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service an

2,6-dichloro-4,8-dipiperidinopyrimido(5,4-d)pyrimidine

Cas:7139-02-8

Min.Order:1 Gram

Negotiable

Type:Other

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, intermediat

Enke 2,6-Dichloro-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

FOB Price: $300.0 / 400.0

Type:Lab/Research institutions

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

2,6-Dichloro-4,8-di(piperidin- 1-yl)pyrimido[5,4-d]pyrimidine Cas no.7139-02-8 98%

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Luyunjia Chemistry Xiamen Limited

Luyunjia Chemistry Xiamen Limited is a high-tech company specializing in R&D and manufacturing of photoinitiators monomers and oligomers, UV absorbers and pharmaceutical intermediates, and pharmaceutical intermediates of generic drug. and has a h

hight quality 2,6-Dichloro-4,8-di-(piperidin-l-yl)pyrimido[5,4-d] pyrimidine

Cas:7139-02-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Vanz Pharm Co.,Ltd

ISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

2,6-dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

manufacture Application:The refence standard products, for lab use, also we could produce bigger quantity on yr requirement.

2,6-dichloro-4,8-dipiperidinopyrimido(5,4-d)pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

2,6-dichloro-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re

2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Koning Pharmchem Co., Ltd.

KONING PHARMCHEM CO., LTD. has committed itself to a strategy of providing a unique service for companies involved in the manufacture of pharmaceuticals, healthcare products, food, cosmetics and other fine chemicals. Our products including but not li

2,6-dichloro-4,8-dipiperidinyl-pyrimido[5,4-d]pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

Pyrimido[5,4-d]pyrimidine,2,6-dichloro-4,8-di-1-piperidinyl-

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen AmoyChem Co.,Ltd

Amoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi

2,6-Dichloro-4,8-di-(piperidin-l-yl)pyrimido[5,4-d] pyrimidine

Cas:7139-02-8

Min.Order:0

Negotiable

Type:Other

inquiry

Synthetic route

piperidine
110-89-4

piperidine

2,4,6,8-Tetrachloro-pyrimido[5,4-d]pyrimidine
32980-71-5

2,4,6,8-Tetrachloro-pyrimido[5,4-d]pyrimidine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
With copper(l) iodide; caesium carbonate In nitrobenzene at 180℃; for 16h; Inert atmosphere;95%
In tetrahydrofuran at 25℃;93%
Substitution;
In tetrahydrofuran at 0 - 5℃; for 0.333333h;
In tetrachloromethane; acetone at 30℃; for 1h;
C30H34N6O6S2

C30H34N6O6S2

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
With thionyl chloride; triethylamine for 0.133333h; Time; Microwave irradiation;93.5%
1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8-(3H,7H)-tetrone

1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8-(3H,7H)-tetrone

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: aq. NaOH / 0.33 h / Heating
1.2: 39 percent / PCl5; POCl3 / 8 h / Heating
2.1: 93 percent / tetrahydrofuran / 25 °C
View Scheme
2,4,6,8-tetrahydroxypyrimidine-[5,4-d]pyrimidine
6713-54-8

2,4,6,8-tetrahydroxypyrimidine-[5,4-d]pyrimidine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: thionyl chloride / 1,4-dioxane / 1 h
1.2: 1.5 h / Darkness
2.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
2: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
6-Methyluracil
626-48-2

6-Methyluracil

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: 2,2'-azobis(isobutyronitrile); cobalt(II) acetate; acetic acid; oxygen / 15 h / 80 °C
2.1: sodium hydroxide / water / 3 h
2.2: 25 - 45 °C / Inert atmosphere
3.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
4.1: sodium hydroxide / water / 4 h / 100 °C
5.1: thionyl chloride / 1,4-dioxane / 1 h
5.2: 1.5 h / Darkness
6.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 6 steps
1.1: sodium hydroxide; water; oxygen / 95 °C
2.1: nitric acid; sulfuric acid / 1 h / 10 - 30 °C
3.1: sodium dithionite / water / 0.5 h / 35 °C
4.1: 0.33 h / 100 °C
4.2: 1 h / 90 - 100 °C
4.3: 0.5 h / 60 °C / pH 4
5.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
6.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
orotic acid
65-86-1

orotic acid

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: sodium hydroxide / water / 3 h
1.2: 25 - 45 °C / Inert atmosphere
2.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
3.1: sodium hydroxide / water / 4 h / 100 °C
4.1: thionyl chloride / 1,4-dioxane / 1 h
4.2: 1.5 h / Darkness
5.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
5-nitroorotic acid
17687-24-0

5-nitroorotic acid

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: copper; hydrogenchloride / water / 13 h / 40 °C / Inert atmosphere
2.1: sodium hydroxide / water / 4 h / 100 °C
3.1: thionyl chloride / 1,4-dioxane / 1 h
3.2: 1.5 h / Darkness
4.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: sodium dithionite / water / 0.5 h / 35 °C
2.1: 0.33 h / 100 °C
2.2: 1 h / 90 - 100 °C
2.3: 0.5 h / 60 °C / pH 4
3.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
4.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid
7164-43-4

5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium hydroxide / water / 4 h / 100 °C
2.1: thionyl chloride / 1,4-dioxane / 1 h
2.2: 1.5 h / Darkness
3.1: caesium carbonate; copper(l) iodide / nitrobenzene / 16 h / 180 °C / Inert atmosphere
View Scheme
Multi-step reaction with 3 steps
1.1: 0.33 h / 100 °C
1.2: 1 h / 90 - 100 °C
1.3: 0.5 h / 60 °C / pH 4
2.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
3.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
orotic acid sodium salt
154-85-8

orotic acid sodium salt

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: nitric acid; sulfuric acid / 1 h / 10 - 30 °C
2.1: sodium dithionite / water / 0.5 h / 35 °C
3.1: 0.33 h / 100 °C
3.2: 1 h / 90 - 100 °C
3.3: 0.5 h / 60 °C / pH 4
4.1: trichlorophosphate; phosphorus trichloride; chlorine / 24 h / 110 °C
5.1: acetone; tetrachloromethane / 1 h / 30 °C
View Scheme
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(R,S)-2,2-dimethyl-1,3-dioxolane-4-methanol
100-79-8

(R,S)-2,2-dimethyl-1,3-dioxolane-4-methanol

2,6-bis-(2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine
774539-20-7

2,6-bis-(2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: (R,S)-2,2-dimethyl-1,3-dioxolane-4-methanol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
99%
(+/-)-2-methyl-1-butanol
137-32-6

(+/-)-2-methyl-1-butanol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-bis-(2-methyl-butoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-bis-(2-methyl-butoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: (+/-)-2-methyl-1-butanol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
98%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,2'-iminobis[ethanol]
111-42-2

2,2'-iminobis[ethanol]

dipyridamole
58-32-2

dipyridamole

Conditions
ConditionsYield
Stage #1: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine; 2,2'-iminobis[ethanol] In toluene at 0 - 155℃; for 9.5h;
Stage #2: With benzenesulfonic acid In water; toluene at 0 - 95℃; for 2h;
Stage #3: With ammonia; pyrographite In ethanol for 0.333333h; pH=8; Temperature;
95%
With 001x7 strong acid cation exchange resin In 1,3-dioxane at 78℃; for 4.5h; Temperature;75%
Stage #1: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine; 2,2'-iminobis[ethanol] at 180℃; for 3h;
Stage #2: With sodium hydroxide In water; acetone at 25℃; for 4h;
70%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

cyclohexylmethyl alcohol
100-49-2

cyclohexylmethyl alcohol

2,6-dicyclohexylmethoxy-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

2,6-dicyclohexylmethoxy-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: cyclohexylmethyl alcohol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
92%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

1,2-O-isopropylidene-D-glycerol
14347-78-5

1,2-O-isopropylidene-D-glycerol

(S,S)-2,6-bis(2',2'-dimethyl-1',3'-dioxolane-4'-methoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine
774539-21-8

(S,S)-2,6-bis(2',2'-dimethyl-1',3'-dioxolane-4'-methoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: 1,2-O-isopropylidene-D-glycerol With sodium hydride In tetrahydrofuran at 60℃; for 5h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
92%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(S)-(+)-(2,2-dimethyl-[1,3]dioxolan-4-yl)methanol
22323-82-6

(S)-(+)-(2,2-dimethyl-[1,3]dioxolan-4-yl)methanol

(R,R)-2,6-bis(2',2'-dimethyl-1',3'-dioxolane-4'-methoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine
774539-22-9

(R,R)-2,6-bis(2',2'-dimethyl-1',3'-dioxolane-4'-methoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: (S)-(+)-(2,2-dimethyl-[1,3]dioxolan-4-yl)methanol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
91%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

diethylamine
109-89-7

diethylamine

N,N,N',N'-tetraethyl-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diamine

N,N,N',N'-tetraethyl-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diamine

Conditions
ConditionsYield
In tetrahydrofuran at 200℃; for 96h;90%
ethanol
64-17-5

ethanol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-diethoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-diethoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: ethanol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
84%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine
93047-01-9

4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
With potassium hydroxide; hydrogen; palladium on activated charcoal In tetrahydrofuran under 2585.74 Torr; for 48h;64%
i-Amyl alcohol
123-51-3

i-Amyl alcohol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-di-(3'-methylbutoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

2,6-di-(3'-methylbutoxy)-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: i-Amyl alcohol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
63%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

isopropyl alcohol
67-63-0

isopropyl alcohol

2,6-diisopropoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-diisopropoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: isopropyl alcohol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
58%
2,3-dimethoxypropan-1-ol
40453-77-8

2,3-dimethoxypropan-1-ol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-bis-(2,3-dimethoxy-propoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-bis-(2,3-dimethoxy-propoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxypropan-1-ol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
57%
2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-diisobutoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-diisobutoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: 2-methyl-propan-1-ol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
54%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

trimethyleneglycol
504-63-2

trimethyleneglycol

3-[6-(3-hydroxy-propoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yloxy]-propan-1-ol

3-[6-(3-hydroxy-propoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yloxy]-propan-1-ol

Conditions
ConditionsYield
Stage #1: trimethyleneglycol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
51%
methanol
67-56-1

methanol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-dimethoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-dimethoxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: methanol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
46%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

ethylene glycol
107-21-1

ethylene glycol

2-[6-(2-hydroxy-ethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yloxy]-ethanol

2-[6-(2-hydroxy-ethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yloxy]-ethanol

Conditions
ConditionsYield
Stage #1: ethylene glycol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
45%
propan-1-ol
71-23-8

propan-1-ol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

4,8-di-piperidin-1-yl-2,6-dipropoxy-pyrimido[5,4-d]pyrimidine

4,8-di-piperidin-1-yl-2,6-dipropoxy-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: propan-1-ol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
42%
3-Amino-1,2-propanediol
616-30-8, 13552-31-3

3-Amino-1,2-propanediol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

3-[6-(2,3-dihydroxy-propylamino)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-ylamino]-propane-1,2-diol

3-[6-(2,3-dihydroxy-propylamino)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-ylamino]-propane-1,2-diol

Conditions
ConditionsYield
at 100 - 150℃;41%
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

allyl alcohol
107-18-6

allyl alcohol

2,6-bis-allyloxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-bis-allyloxy-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: allyl alcohol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
40%
2-methoxy-ethanol
109-86-4

2-methoxy-ethanol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-bis-(2-methoxy-ethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

2,6-bis-(2-methoxy-ethoxy)-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: 2-methoxy-ethanol With sodium hydride In tetrahydrofuran at 60℃; for 0.0833333h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
34%
1-methoxy-2-propanol
107-98-2

1-methoxy-2-propanol

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,6-di-(1'-methyl-2'-methoxy)ethoxy-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

2,6-di-(1'-methyl-2'-methoxy)ethoxy-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: 1-methoxy-2-propanol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;
22%
(2-hydroxyethyl)(methyl)amine
109-83-1

(2-hydroxyethyl)(methyl)amine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

2,2'-[N,N'-dimethyl-N,N'-(4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diyl)-diamino]-bis-ethanol
13144-60-0

2,2'-[N,N'-dimethyl-N,N'-(4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diyl)-diamino]-bis-ethanol

Conditions
ConditionsYield
Substitution;
n-Dodecylamine
124-22-1

n-Dodecylamine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-dodecyl-amine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-dodecyl-amine

Conditions
ConditionsYield
Substitution;
n-Octylamine
111-86-4

n-Octylamine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-octyl-amine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-octyl-amine

Conditions
ConditionsYield
Substitution;
hexan-1-amine
111-26-2

hexan-1-amine

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-hexyl-amine

(6-chloro-4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidin-2-yl)-hexyl-amine

Conditions
ConditionsYield
Substitution;
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

ethanolamine
141-43-5

ethanolamine

2,2'-(4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diyldiamino)-bis-ethanol
57370-13-5

2,2'-(4,8-di-piperidin-1-yl-pyrimido[5,4-d]pyrimidine-2,6-diyldiamino)-bis-ethanol

Conditions
ConditionsYield
Substitution;
In dimethyl sulfoxide at 150℃; for 6h;162 mg
2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine
7139-02-8

2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

(S)-2-O-(4'-methoxybenzyl)propan-1,2-diol
122151-36-4

(S)-2-O-(4'-methoxybenzyl)propan-1,2-diol

(S,S)-2,6-di-[2'-O-(4'-methoxybenzyl)propoxy]-4,8-dipiperidinopyrimido[5,4-d]pyrimidine
774539-31-0

(S,S)-2,6-di-[2'-O-(4'-methoxybenzyl)propoxy]-4,8-dipiperidinopyrimido[5,4-d]pyrimidine

Conditions
ConditionsYield
Stage #1: (S)-2-O-(4'-methoxybenzyl)propan-1,2-diol With sodium In tetrahydrofuran for 2h;
Stage #2: 2,6-dichloro-4,8-bis(piperidin-1-yl)pyrimido[5,4-d]pyrimidine In tetrahydrofuran Heating;

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