Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetone | HCID 180 | — |
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Chloroform | HCID 6212 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Product | Anthrone | HCID 7018 | — |
Reaction Steps
An amylase inhibitor, TAI-B; being a white amorphous powder; having a decomposition point at 169°-174° C.; containing carbon, hydrogen and nitrogen with the analytical values (%) of C: 42.20, H: 6.47, N: 2.08; having an optical rotatory value of [α]D20 =+142°(c=0.5%, water); having a pKa value of 4.5 (in water); being of molecular weight 650-700 as determined; being soluble in water and dimethylsulfoxide, slightly soluble in methanol and pyridine, and insoluble in ethanol, ethylacetate, chloroform or acetone; having the infrared absorption spectrum shown in FIG. 2; having the nuclear magnetic resonance spectrum shown in FIG. 4; giving positive reactions with Molisch and anthrone; its acid hydrolyzate giving a positive reaction with ninhydrin; and showing the Rf values on thin layer chromatography and paper chromatography as follows:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04197292 |
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| Source dataset | uspto-grants-1980_04 |
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| ORD ID | ord-33b4495bca9446ac8ace4d13e658d348 |
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| Source note | uspto-grants-1980_04 |
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