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Portfolio C — Organic Synthesis

Probes, sphingolipid analogues and building blocks, made to order.

Targeted synthesis from the Department of Organic Chemistry under doc. Miroslava Martinková: fluorescent probes for reactive species, sphingoid bases and their stereoisomers, and reactive saccharide intermediates for bioconjugation. Quantities and purity are agreed per project.

Work in this line is led by doc. RNDr. Miroslava Martinková, PhD. (Department of Organic Chemistry).

C1Fluorescent probe

APF · C26H17NO5 · MW 433.42 g/mol

Aminophenyl Fluorescein (APF)

Cell-permeable, photostable probe for selective detection of highly reactive oxygen and nitrogen species. On reaction with hROS/hRNS it is cleaved to release free fluorescein, giving a strong signal on standard microscopes, flow cytometers and plate readers.

  • hROS / hRNS detection
  • Live-cell imaging
  • Flow cytometry
  • HCS antioxidant screening
Selectivity
OCl⁻ · HO· · ONOO⁻
Stage
Synthesis to order
Indicative
Price on requestby quantity and application
C2

NPF · C26H15NO7 · MW 463.40 g/mol

Nitrophenyl Fluorescein (NPF)

A substrate and reporter group for enzymatic and bioanalytical assays. Enzyme-mediated hydrolysis or reduction of the nitrophenyl ester bond changes absorbance and fluorescence, producing an optical signal proportional to enzyme activity or analyte concentration.

  • Enzyme activity reporter
  • Esterase substrates
  • Hydrolase profiling
  • Plate-reader compatible
Readout
Absorbance · fluorescence
Stage
Synthesis to order
Indicative
Price on requestby quantity and application
C3

Pyrrolidine-based sphingolipid analogues

Sphingomimetics

Synthetic compounds designed to mimic the structure and function of natural sphingolipids. The five-membered nitrogen heterocycle improves chemical stability and affinity for specific enzymes, making these candidates for inhibitor development and lysosomal disorder research.

  • Glucosylceramide synthase inhibitors
  • Gaucher disease research
  • Ceramide regulation
  • Anticancer screening
Evidence
Synthetic capability · characterisation on request
Stage
Synthesis to order · licensing open
Indicative
Price on requestby quantity and application
C4

Sphingoid bases · D/L-ribo & D/L-arabino

Phytosphingosines & Analogues

Natural components of plants, yeasts and human skin. Four stereoisomers differ in the spatial arrangement of hydroxyl groups, which makes the set useful for enzyme stereoselectivity studies. D-ribo-phytosphingosine is the most common natural form.

  • Cosmetics & dermatology
  • Skin barrier
  • Anti-acne research
  • Enzyme stereoselectivity
Evidence
Synthetic capability · characterisation on request
Stage
Synthesis to order · licensing open
Indicative
Price on requestby quantity and application
C5

Amino derivatives · D-/L-erythro · –NH₂ at C3

3-Amino-3-deoxy-dihydrosphingosines

Dihydrosphingosine derivatives in which the C3 hydroxyl is replaced by an amino group. The D-erythro and L-erythro isomers show distinct biological activity, and the amino group enables stronger protein kinase C inhibition — relevant to cell signalling and apoptosis research.

  • Molecular probes
  • PKC inhibition
  • Apoptosis research
  • Sphingolipid metabolism
Evidence
Synthetic capability · characterisation on request
Stage
Synthesis to order
Indicative
Price on requestby quantity and application
C6

Sphingosine analogues · S1P pathway

D-erythro-Sphingosine Analogues

Sphingosine is the fundamental building block of sphingolipids. These analogues carry modified chain lengths or functional groups for precise modulation of sphingosine-1-phosphate signalling — a pathway studied in autoimmune disease and tumour angiogenesis research.

  • S1P pathway modulation
  • Multiple sclerosis research
  • Angiogenesis research
  • Biomedical research
Evidence
Synthetic capability · characterisation on request
Stage
Synthesis to order · licensing open
Indicative
Price on requestby quantity and application
C7Bioconjugation tools

Saccharide derivatives · Reactive intermediates

Sugar Isothiocyanates & Aminosugars

Sugar isothiocyanates form covalent bonds with amines, which makes them useful for conjugating sugars to proteins or fluorescent labels and tracking sugar transport in vivo. Aminosugars are building blocks for glycoprotein and glycolipid synthesis, joint-nutrition compounds and antibiotic development targeting bacterial cell walls.

  • Bioconjugation
  • Glycoprotein synthesis
  • Glycolipid building blocks
  • Antibiotic development
  • Chondroprotectives
Evidence
Synthetic capability · characterisation on request
Stage
Synthesis to order · licensing open
Indicative
Price on requestcustom quantities available

Combined offer

APF and NPF are also offered as a single panel, so that hROS/RNS-mediated effects and enzyme-catalysed transformations can be separated inside one experimental system.

See the APF + NPF probe panel

Tell us what you are trying to achieve.

A free 30-minute call establishes whether there is a fit and what the right next step is. Every inquiry is acknowledged within one working day and answered by the responsible group leader within three.