C-23-Modified derivatives of DMT
US4452784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1982 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Jul 19, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
C-23-Modified derivatives of demycinosyltylosin (DMT) of the formula: ##STR1## wherein R is iodo, bromo, chloro, fluoro, --S--R.sup.4, azido, --NHR.sup.5, pyridinium or --OSO.sub.2 CF.sub.3 ; PA1 R.sup.1 is hydrogen, optionally substituted C.sub.1 -C.sub.5 -alkanoyl or optionally substituted benzoyl, phenylacetyl, phenylpropionyl, phenoxyacetyl or phenylthioacetyl; PA1 R.sup.2 is hydrogen, optionally substituted C.sub.1 -C.sub.5 -alkanoyl or optionally substituted benzoyl, phenylacetyl or phenylpropionyl; PA1 R.sup.3 is hydrogen, optionally substituted C.sub.1 -C.sub.5 -alkanoyl or optionally substituted benzoyl, phenylacetyl or phenoxyacetyl; PA1 R.sup.4 is hydrogen, optionally substituted C.sub.1 -C.sub.6 -alkyl, cyclohexyl, C.sub.1 -C.sub.5 -alkanoyl, optionally substituted phenyl or benzyl, or an optionally substituted heteroaryl group selected from imidazolyl, pyrazolyl, pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, triazinyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, thienyl and furanyl; and PA1 R.sup.5 is hydrogen or an acyl group selected from optionally substituted C.sub.1 -C.sub.5 -alkanoyl or optionally substituted ben…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.