Three pyrrololactam alkaloids have been isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea,and their structures were determined as 1—3,on the grounds of spectral data.This is t...Three pyrrololactam alkaloids have been isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea,and their structures were determined as 1—3,on the grounds of spectral data.This is the first report of these compounds from this sponge.The structure of 1 was confirmed by X-ray analysis.展开更多
The crystal structure of the title compound (C8H7BrN2O2, Mr=243.07) was isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea. Its crystal structure was determined by single-crysta...The crystal structure of the title compound (C8H7BrN2O2, Mr=243.07) was isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea. Its crystal structure was determined by single-crystal X-ray diffraction. The crystal is orthorhombic with space group Pbca, a=12.9952(8), b=7.4479(5), c=18.598(1) ?, V=1800.1(2) ?3, Z=8, Dc=1.794g/cm3, (=0.71073 ?, ( (MoK()=4.533mm-1, F(000)=960. The structrue was refined to R=0.0349, wR(F2)=0.0925 for 1589 reflections with I > 2((I). X-ray diffraction analysis reveals that the title compound has one five-membered pyrrole ring and one seven-membered azepin ring. There are two intermolecular hydrogen bonds between two molecules.展开更多
基金This work was supported by the National Natural Science Foundation of China.
文摘Three pyrrololactam alkaloids have been isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea,and their structures were determined as 1—3,on the grounds of spectral data.This is the first report of these compounds from this sponge.The structure of 1 was confirmed by X-ray analysis.
文摘The crystal structure of the title compound (C8H7BrN2O2, Mr=243.07) was isolated from the marine sponge Phacellia fusca Schmidt collected from the South China Sea. Its crystal structure was determined by single-crystal X-ray diffraction. The crystal is orthorhombic with space group Pbca, a=12.9952(8), b=7.4479(5), c=18.598(1) ?, V=1800.1(2) ?3, Z=8, Dc=1.794g/cm3, (=0.71073 ?, ( (MoK()=4.533mm-1, F(000)=960. The structrue was refined to R=0.0349, wR(F2)=0.0925 for 1589 reflections with I > 2((I). X-ray diffraction analysis reveals that the title compound has one five-membered pyrrole ring and one seven-membered azepin ring. There are two intermolecular hydrogen bonds between two molecules.
