Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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477/00
Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring
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C07D477/10
with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2
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C07D477/12
with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 6
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C07D477/12

Crystal of doripenem, and preparation method therefor
09840506 · 2017-12-12 · ·

This invention relates to a novel doripenem crystal, a solvate thereof, and a preparation method thereof and, more specifically, to a novel doripenem anhydride crystal, a method of preparing the doripenem anhydride crystal using various solvents, and a solvate of doripenem.

Crystal of doripenem, and preparation method therefor
09840506 · 2017-12-12 · ·

This invention relates to a novel doripenem crystal, a solvate thereof, and a preparation method thereof and, more specifically, to a novel doripenem anhydride crystal, a method of preparing the doripenem anhydride crystal using various solvents, and a solvate of doripenem.

NOVEL CRYSTAL OF DORIPENEM, AND PREPARATION METHOD THEREFOR
20170050969 · 2017-02-23 · ·

This invention relates to a novel doripenem crystal, a solvate thereof, and a preparation method thereof and, more specifically, to a novel doripenem anhydride crystal, a method of preparing the doripenem anhydride crystal using various solvents, and a solvate of doripenem.