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Cafestol, a Bioactive Substance in Coffee, Has Antidiabetic Properties in KKAy Mice

Image result for Cafesterol

ChemSpider 2D Image | Cafesterol | C20H28O3

Image result for Cafesterol


  • Molecular FormulaC20H28O3
  • Average mass316.435 Da
  • (1S,4S,12S,13R,16S,17R)-17-(Hydroxymethyl)-12-methyl-8-oxapentacyclo[,13.04,12.05,9]nonadeca-5(9),6-dien-17-ol
    469-83-0 [RN]

Scientists identify health benefits of cafestol in coffee

Scientists have identified two compounds in coffee – cafestol and caffeic acid – that could someday lead to the development of new medications to better prevent and treat type 2 diabetes…

Drinking three to four cups of coffee per day has been shown to decrease the risk of developing type 2 diabetes.

Now, scientists report they have identified two compounds that contribute to this health benefit. Researchers say that this knowledge could someday help them develop new medications to better prevent and treat the disease.

Patients with type 2 diabetes become resistant to insulin, a hormone that helps turn glucose from food into energy. To overcome this resistance, the pancreas makes more insulin, but eventually, it just can’t make enough. High blood glucose levels can cause health problems, such as blindness and nerve damage.

Coffee’s cafestol has dual benefits

Several genetic and life style risk factors have been linked to the development of type 2 diabetes, but drinking coffee has been shown to help prevent its onset. Caffeine was thought to be responsible, but studies have shown it has only a short-term effect on glucose and insulin, and decaffeinated coffee has the same effect as the regular version of the drink. To investigate which of coffee’s many bioactive components are responsible for diabetes prevention, Søren Gregersen and colleagues tested the effects of different coffee substances in rat cell lines.

The researchers investigated different coffee compounds’ effects on cells in the lab. Cafestol and caffeic acid both increased insulin secretion when glucose was added. The team also found that cafestol increased glucose uptake in muscle cells, matching the levels of a currently prescribed antidiabetic drug. They say cafestol’s dual benefits make it a good candidate for the prevention and treatment of type 2 diabetes. However, because coffee filters eliminate much of the cafestol in drip coffee, it is likely that other compounds also contribute to these health benefits.


Image result for Cafesterol

IUPAC name

3D model (JSmol)
PubChem CID
Molar mass 316.44 g·mol−1
Melting point 158 to 162 °C (316 to 324 °F; 431 to 435 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Structural Formula Vector Image
Title: Cafestol
CAS Registry Number: 469-83-0
CAS Name: [3bS-(3ba,5ab,7b,8b,10aa,10bb)]-3b,4,5,6,7,8,9,10,10a,10b,11,12-Dodecahydro-7-hydroxy-10b-methyl-5a,8-methano-5aH-cyclohepta[5,6]naphtho[2,1-b]furan-7-methanol
Additional Names: cafesterol
Molecular Formula: C20H28O3
Molecular Weight: 316.43
Percent Composition: C 75.91%, H 8.92%, O 15.17%
Literature References: Diterpenoid constituent of coffee. Isoln from green coffee oil: Slotta, Neisser, Ber. 71, 1991, 2342 (1938); C. Djerassi et al., J. Org. Chem. 18, 1449 (1953). Prepn and purification: R. Bertholet, US 4692534 (1987 to Nestec). Structure: C. Djerassi et al., J. Am. Chem. Soc. 81, 2386 (1959); R. A. Finnegan, C. Djerassi, ibid. 82, 4342 (1960). Stereochemical studies: R. A. Finnegan, J. Org. Chem. 26, 3057 (1961); A. I. Scott et al., J. Am. Chem. Soc. 84, 3197 (1962); A. I. Scott et al., Tetrahedron20, 1339 (1964). Stereospecific total synthesis of (±)-form: E. J. Corey et al., J. Am. Chem. Soc. 109, 4717 (1987).
Properties: Crystals from hexane, mp 158°-l60°. [a]D -101°. uv max: 222 nm (log e 3.78).
Melting point: mp 158°-l60°
Optical Rotation: [a]D -101°
Absorption maximum: uv max: 222 nm (log e 3.78)
Derivative Type: Acetate
Molecular Formula: C22H30O4
Molecular Weight: 358.47
Percent Composition: C 73.71%, H 8.44%, O 17.85%
Properties: Needles from petr ether, mp 167-168°. [a]D -89°. uv max: 222 nm (log e 3.80).
Melting point: mp 167-168°
Optical Rotation: [a]D -89°
Absorption maximum: uv max: 222 nm (log e 3.80)
Derivative Type: Tetrahydrocafestol
Molecular Formula: C20H32O3
Molecular Weight: 320.47
Percent Composition: C 74.96%, H 10.06%, O 14.98%
Properties: Crystals from dil methanol, mp 154.5-157°.
Melting point: mp 154.5-157°



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DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with AFRICURE PHARMA, ROW2TECH, NIPER-G, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Govt. of India as ADVISOR, earlier assignment was with GLENMARK LIFE SCIENCES LTD, as CONSUlTANT, Retired from GLENMARK in Jan2022 Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 32 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 32 PLUS year tenure till date Feb 2023, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 100 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 100 Lakh plus views on dozen plus blogs, 227 countries, 7 continents, He makes himself available to all, contact him on +91 9323115463, email, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 38 lakh plus views on New Drug Approvals Blog in 227 countries...... , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc He has total of 32 International and Indian awards

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