Abstract: Compounds of formula I, ##STR1## wherein M is Met, DMet, MeMet, MetO, Ahx, DAhx, MeAhx, Leu, MeLeu, Pro, Ile, MeIle, Ala or Lys, G is Gly, DAla, Pro, Ala, .beta.Ala or Sar; W is Trp, MeTrp, Ala or Nal; X is Met, MeMet, MetO, Ahx, MeAhx, Leu, MeLeu, Pro, Ile, MeIle, Ala, Phe, Lys or Lys(R.sup.8); J is Asp, DAsp, MeAsp, Asp(OBn), Ala or MeDAsp; F.sup.1 is (S)--NH, (R)--NH, (S)--R.sup.1 N or (R)--R.sup.2 N; F.sup.2 is H, Cl, I, Br, F, NO.sub.2, NH.sub.2, R.sup.3 or OR.sup.4 ; Z is NH.sub.2, NHR.sup.5 or NR.sup.5 R.sup.6 ; R.sup.1, R.sup.2, R.sup.3, R.sup.5 and R.sup.6 are alkyl C.sub.1-6 ; R.sup.4 is H or alkyl C.sub.1-4 ; R.sup. is OH or OSO.sub.3 H; and pharmaceutically acceptable derivatives thereof; are useful as therapeutic agents, in particular in the inhibition of feeding.

Abstract: Novel peptides having sulfate ester groups and containing 6 to 9 amino acids; possessing feeding inhibition properties and capable of stimulating the contraction of the gallbladder. Also methods of treating and preventing obesity in which these novel peptides or other specified peptides can be used.

Abstract: Peptides and Peptide amides such as cholecystokinin (CCK-8) are synthesized in improved yields and purity by a solid phase process. The requisite protected peptide is elaborated and sulfated on a solid support, deprotected, and cleaved from the solid support to give the total synthesis of CCK-8 on a solid support. Thereafter, the peptide is purified in a single step by ion exchange chromatography to provide analytically pure CCK-8.