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US 4,803,074 AGranted
FR-900848 substance and preparation thereof
AssigneeFujisawa Pharmaceutical Co., Ltd.
InventorsMasaru Yoshida, Koki Horikoshi
Life of this patent
Estimating the term…
Abstract
This invention relates to a compound, FR-900848, having antimicrobial activity against various microorganisms, to a process for the preparation of same and to a pharmaceutical composition comprising same.
Claims3
FR-900848 substance, wherein FR-900848 substance has following physico-chemical properties:
- Appearance:
- colorless needles
- Nature:
- acidic
- Melting point:
- 198.degree.-201.degree. C. (dec)
- Specific rotation:
- [.alpha]sub.D.sup.20 :
- -36.22.degree. (c=0.5, DMSO)
- Molecular formula:
- C.sub.32 H.sub.43 N.sub.3 O.sub.6
- Elemental Analysis:
- Calcd:
- for C.sub.32 H.sub.43 N.sub.3 O.sub.6 :
- C, 67.94, H, 7.60, N, 7.43;
- O, 16.97 (%);
- Found:
- C, 68.57;
- H, 7.51;
- N, 7.53;
- (O, 16.39) (%)
- Molecular weight:
- FAB-MS m/z 56
- Solubility:
- soluble:
- dimethylsulfoxide;
- slightly soluble:
- methanol, ethyl acetate, chloroform;
- insoluble:
- water
- Color reaction:
- positive:
- Dragendorff reaction, Ehrlich reaction, cerium sulfate reaction, iodine vapor reaction
- negative:
- Ninhydrin reaction, ferric chloride reaction, Molish reaction
- Thin layer chromatography:
- Rf value (silica plate, Kieselgel 60 F.sub.254, made by Merck & Co., Inc.):
- 0. 55 (chloroform:methanol=5:1);
- 0.70 (chloroform:methanol included 10% acetic acid=5:1)
- High pressure thin layer chromatography:
- Rf value (RP-18 F.sub.254, made by Merck & Co., Inc.):
- 0.21 (methanol:10% acetic acid=9:1)
- High pressure liquid column chromatography (HPLC):
- (Column YMC-Pack A-302 (5 .mu.m, 4.5.times.150 mm) (made by Yamamura Chemical Institute)
- HITACHI M655 HPLC Processor (detect UV 280 nm);
- solvent system methanol:10% acetic acid=9:1);
- retention time:
- 4.42 minutes
- Ultraviolet absorption spectrum:
- .lambda..sub.max.sup.methanol =280 nm (.epsilon.=31,000);
- .lambda..sub.max.sup.0.1N HCl-methanol =280 nm (.epsilon.=31,000);
- .lambda..sub.max.sup.0.1N NaCl-methanol =280 nm (.epsilon.=31,000)
- Infrared absorption spectrum:
- .nu..sub.max.sup.Nujol =3320, 3250, 3055, 3000(sh), 2950(sh), 2920, 2850, 1760, 1708, 1675, 1650, 1615, 1540, 1520(sh), 1480, 1455, 1410, 1395, 1370, 1350, 1330, 1308, 1270, 1245, 1230, 1202, 1180, 1160, 1133, 1120(sh), 1093, 1068, 1030, 1020, 986, 955(sh), 945, 928, 917, 900, 880, 860, 850(sh), 825, 800, 760, 740, 720 cm.sup.-1
- .sup.1 H Nuclear magnetic resonance spectrum:
- (DMSO-d.sub.6, 400.13 MHz);
- .delta.:
- 0.01-0.15 (4H, m), 0.29-0.37 (3H, m), 0.39-0.45 (1H, m), 0.46-0.76 (8H, m), 0.92-1.06 (3H, m), 0.99 (3H, d, J=6 Hz), 1.25 (1H, m), 2.43-2.60 (2H, m), 3.21 (1H, m), 3.26-3.44 (3H, m), 3.69 (1H, m), 3.75 (1H, m), 3.94 (1H, m), 4.91-5.00 (2H, m), 5.02 (1H, d, J=4.9 Hz), 5.12 (1H, d, J=5.6 Hz), 5.64 (1H, dd, J=14.9 and 9.4 Hz), 5.66 (1H, d, J=6.0 Hz), 5.89 (1H, d, J=15.0 Hz), 6.20 (1H, dd, J= 14.9 and 11.1 Hz), 6.94 (1H, dd, J=15.0 and 11.1 Hz), 8.02 (1H, t, J=5.7 Hz), 10.27 (1H, broad s) ppm
- .sup.13 C Nuclear magnetic resonance spectrum:
- (DMSO-d.sub.6, 100.62 Hz);
- .delta.:
- 7.60(t), 7.65(t), 11.16(t), 12.95(t), 14.08(d), 14.37(t), 17.65(d), 17.81(d), 18.02(d), 18.29(d), 18.31(q), 19.67(d), 21.00(d), 21.24(d), 22.01(d), 23.28(d), 30.82(t), 35.97(t), 41.031(t), 70.06(d), 71.18(d), 81.21(d), 87.64(d), 121.45(d), 125.48(d), 130.27(d), 130.622(d), 139.44(d), 145.70(d), 153.10(s), 165.60(s), 170.29(s) ppm.
59 more elements
Dependencies are inferred from the claim text.